Cloud1.pw ads: what it is and how to remove it
Cloud1.pw is a malicious website that employs social engineering techniques in order to make users download files of unknown origin, collect their personal information and subscribe to notifications that would appear directly on users' desktops even if the web browser is not in use. Additionally, some users claimed that they encountered Cloud1.pw on Android phones and that persistent redirects led them to known websites.
Facts checked October 7, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
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Cloud1.pw ads: summary
| Name | Cloud1.pw |
|---|---|
| Type | Adware, push notification virus |
| Infiltration | Adware is generally known to be spread along with other freeware apps from third-party sources or via fake updates; unwanted Cloud1.pw desktop notifications can be present as a result of allowing them via the browser prompt |
| Related | Cloud Browser extension |
| Symptoms | Advertisement banners appear on all websites that |
| Dangers | Infiltration of potentially unwanted software and malware, personal data disclosure to unknown parties/cybercriminals, loss of money due to frequently encountered scams, etc. |
| Removal | Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged. Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free. |
Show 8 more facts
| Termination | You can get rid of unwanted desktop notification by accessing settings panel of your browser; if a computer infection is involved, you need to terminate the adware or another PUP from your device by following the provided instructions below |
|---|---|
| Detection names | No Microsoft detection name is known |
| Distribution | Not recorded in the old report |
| Damage | Not recorded in the old report |
| Evidence | 5 write-ups by security sites; details still limited |
| Program | Cloud1.pw |
| First seen | 24 January 2020 |
| Facts checked | 7 October 2026 |
Is Cloud1.pw ads dangerous?
From our report of Jan 2020 · not reviewed since
Cloud1.pw is a push notification scam that can lead to intrusive ads even with Google Chrome, Mozilla Firefox, or another browser switched off
Cloud1.pw is a malicious website that employs social engineering techniques in order to make users download files of unknown origin, collect their personal information and subscribe to notifications that would appear directly on users' desktops even if the web browser is not in use. Additionally, some users claimed that they encountered Cloud1.pw on Android phones and that persistent redirects led them to known websites.
Cloud1.pw ads and pop-ups can originate from two different sources: either the machine is infected with an adware program that sneaked in without asking for direct permission, or that the notifications were accepted by pressing "Allow" on the site prompt.
As a result, users might be spammed with pop-ups, deals, offers, banners, coupons, and other intrusive advertisements on Google Chrome, Safari, Mozilla Firefox, MS Edge, or another web browser. Some of the browser extensions, such as "Cloud Browser," have been found connected to the unwanted background activity. In any case, we will explain Cloud1.pw removal methods in the bottom section below.
Adware is based on the monetization form - it uses advertisements that are shown to thousands of users and gain revenue for each click or redirect to a particular site.
Therefore, it is in the best interest of PUP developers to expose users to as much ad content as possible, and also for as many users as possible. That is where software bundling comes in, as it is a primary distribution method of adware programs like Cloud1.pw.
Once installed, a potentially unwanted program might change web browser settings without permission and start its advertising activities. While ads can be a great business model for app developers, they always contain risks, as there are plenty of shady advertising networks. As a result, the installed PUP may lead users to websites like tech support scams, phishing, hacked, and other sites, including Cloud1.pw.
To make matters worse, the instantaneous Cloud1.pw notification prompt tries to convince users to enable ads by pressing the "Allow" button. Those who do, simply allow this dubious site to proliferate more advertisement content, although it is not showed within browsers anymore, but rather as desktop notifications. Unfortunately, many users don't know how to remove Cloud1.pw notifications from their desktops once they are enabled.
To put it simply, Cloud1.pw combines two legitimate features to make users view ads constantly and bring money to its developers.
All in all, the reason you see redirects to Cloud1.pw might be due to adware infection, although desktop notifications might not be related to it all and be a result of allowing them via the browser prompt after accessing the site. To get rid of the Cloud1.pw virus, you should scan your machine with anti-malware software or follow a detailed guide below.
Note that resetting browsers will also stop the annoying Cloud1.pw notifications immediately. However, if you found adware on your machine, remove it as soon as possible.
From our report of Jan 2020 · not reviewed since
Ways to avoid bundled software tricks
Many users are relatively surprised when they discover that the cause for ads, redirects, and other intrusive browsers behavior is actually a potentially unwanted program that is residing within their machines.
In most cases, they will simply shake their heads and say that they never installed such applications themselves, and have no clue how it got there. The truth is, software bundling is to blame - a successful marketing campaign that incorporates several components within standalone installers.
While it is not illegal to offer users applications for free, the very controversial step of this process is the way it is done.
In most cases, the optional components are suggested to users in a way that they are often missed, and most don't even notice that they were there in the first place. For that, several tricks are used, including pre-ticked boxes, misleading deals/offers, misplaced "Skip" or 'Next" buttons, fine print text, etc.
Therefore, during the installation of free software acquired from third-party sites, it is important to follow the process carefully and never skip steps. Saving a few minutes of the time can cause a major headache later, as malware can also be proliferated with the help of software bundling - previously, one of the uTorrent clients was found installation a cryptojacker on users' systems.
Without a doubt, having a powerful anti-malware program installed on the machine is mandatory, as it can stop various parasites from entering in the first place. However, AV is no longer enough, and users should practice safe web browsing, downloading apps, opening emails, and other online behavior.
From our report of Jan 2020 · not reviewed since
More from our earlier report on Cloud1.pw
- Adware and malware can sometimes impact the computer system in a negative way - so much so that the OS would start crashing and being unstable.
How to remove Cloud1.pw ads
How to remove Cloud1.pw
Uninstall first, then remove what stays behind, so the ads do not come back after a restart.
Step 1: Uninstall Cloud1.pw
Open Settings > Apps > Installed apps in Windows 11, or Settings > Apps > Apps & features in Windows 10. Sort the list by install date and find Cloud1.pw, then choose Uninstall from the three-dot menu next to it (in Windows 10, click the entry and then Uninstall).
Remove anything else installed on the same day that you do not recognise, because such programs usually arrive together in one installer. If the uninstaller opens a browser page with an offer or a survey, close it: the program is removed either way.
Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix
Step 2: Remove it from startup
Whatever Cloud1.pw installed usually starts with Windows. Open Task Manager with Ctrl + Shift + Esc, go to Startup apps in Windows 11 or the Startup tab in Windows 10, and disable what you do not know, starting with entries that have an empty Publisher column.
Open file location on the right-click menu shows the file, which helps you decide and tells you what to delete later. Disabling is safe: if something you need stops working, switch it back on.
Full procedure with screenshots: Stop apps from opening at startup On uGetFix
Step 3: Delete the folders left behind
What the uninstaller leaves behind is usually in the user folders. Open File Explorer, switch on View > Show > Hidden items (in Windows 10 View > Hidden items), and go through
%LocalAppData%,%AppData%, %ProgramData% and the two Program Files folders.Sort by Date modified and delete folders that appeared together with the problem and belong to no program you use. Folders with random names that hold
.exe,.dll, .js or .ps1 files are the strongest sign.Full procedure with screenshots: Remove what malware leaves behind in Windows
Step 4: Reset the browser
Finish the browser part with a reset, which puts the search engine, start page, new tab page and site permissions back to their defaults and switches extensions off. Chrome: Settings > Reset settings > Restore settings to their original defaults.
Edge: Settings > Reset settings. Firefox: Help > More troubleshooting information > Refresh Firefox, which also removes its extensions. Your bookmarks and saved passwords are kept, and the menus are the same on Windows 11 and Windows 10.
Chrome on Windows 11: Settings > Reset settings. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 5: Scan the PC, then run the offline scan
Open Windows Security > Virus & threat protection > Scan options, run a Full scan and remove everything it finds. Then select Microsoft Defender Antivirus (offline scan) and click Scan now: the PC restarts and scans before Windows loads, which finds files that hide while Windows runs.
Save your work first, because the offline scan takes about 15 minutes. Both scans are built into Windows 11 and Windows 10, and a second scanner from another vendor is a useful extra opinion.
Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Uninstall from Windows
To get rid of Cloud1.pw adware on Windows, please follow these steps:
Uninstall from Windows 10/8:
- Type Control Panel into the Windows search box and open the result.
- Under Programs, select Uninstall a program.
Uninstall from Windows 7/XP:
- Click on Windows Start > Control Panel (Windows XP users should click on Add/Remove Programs).
- In Control Panel, select Programs > Uninstall a program.
Remove the unwanted program:
- In the Programs and Features window, look for any recently installed suspicious entries, select them, and click Uninstall.
- If User Account Control appears, click Yes to confirm, then complete the removal.
Remove from Google Chrome
Delete malicious extensions from Google Chrome:
- Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
- In the newly opened window, you will see all the installed extensions. Uninstall all suspicious extensions related to the unwanted program by clicking Remove.
Clear cache and web data from Chrome:
- Click on Menu and pick Settings.
- Under Privacy and security, select Clear browsing data.
- Select Browsing history, Cookies and other site data, as well as Cached images and files.
- Click Clear data.
Change your homepage:
- Click menu and choose Settings.
- Look for a suspicious site in the On startup section.
- Click on Open a specific or set of pages and click on three dots to find the Remove option.
Reset Google Chrome:
If the previous methods did not help you, reset Google Chrome to eliminate all the unwanted components:
- Click on Menu and select Settings.
- In the Settings, scroll down and click Advanced.
- Scroll down and locate Reset and clean up section.
- Now click Restore settings to their original defaults.
- Confirm with Reset settings.
Remove from Microsoft Edge
Delete unwanted extensions from MS Edge:
- Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
- From the list, pick the extension and click on the Gear icon.
- Click Remove.
Clear cookies and other browser data:
- Click on the Menu (three horizontal dots at the top-right of the browser window) and select Settings > Privacy, search, and services..
- Under Clear browsing data, pick Choose what to clear.
- Select Cookies and other site data and Cached images and files. (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.
Restore new tab and homepage settings:
- Click the menu icon and choose Settings.
- Then find On startup section.
- Click Remove next to any suspicious startup page.
Reset MS Edge if the above steps did not work:
- Press on Ctrl + Shift + Esc to open Task Manager.
- Click on More details arrow at the bottom of the window.
- Select Details tab.
- Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.
Delete extensions from MS Edge (Chromium):
- Open Edge and click select Settings > Extensions.
- Delete unwanted extensions by clicking Remove.
Clear cache and site data:
- Click on Menu and go to Settings.
- Select Privacy, search and services.
- Under Clear browsing data, pick Choose what to clear.
- Under Time range, pick All time.
- Select Clear now.
Reset Chromium-based MS Edge:
- Click on Menu and select Settings.
- On the left side, pick Reset settings.
- Select Restore settings to their default values.
- Confirm with Reset.
- This will disable extensions and reset startup pages but will not delete bookmarks, saved passwords, or browsing history.
Remove from Mozilla Firefox (FF)
make sure you reset Mozilla Firefox if you had adware installed on your machine:
Remove dangerous extensions:
- Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
- Select Add-ons.
- In here, select the unwanted extension and click Remove.
Reset the homepage:
- Click three horizontal lines at the top right corner to open the menu.
- Choose Settings.
- Under Home, set your preferred homepage and new tab settings.
Clear cookies and site data:
- Click Menu and pick Settings.
- Go to Privacy & Security section.
- Scroll down to locate Cookies and Site Data.
- Click on Clear Data...
- Select Cookies and Site Data and Temporary cached files and pages, then click Clear.
Reset Mozilla Firefox
If clearing the browser as explained above did not help, reset Mozilla Firefox:
- Open Mozilla Firefox browser and click the Menu.
- Go to Help and then choose Troubleshooting Information.
- Under Give Firefox a tune up section, click on Refresh Firefox...
- Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.
Delete from Safari
Remove dangerous extensions:
- Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
- Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.
Clear history and website data:
- Click Safari in the menu and pick Clear History.
- Set Clear to all history and confirm with Clear History.
Reset Safari:
- Click Safari in the menu and select Preferences > Advanced.
- Enable Show Develop menu in menu bar.
- From the menu bar, click Develop and select Empty Caches.
Delete from macOS
macOS can also get infected with adware - perform the following actions to get rid of all PUPs:
Remove the unwanted application:
- From the menu bar, select Go > Applications.
- In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).
Delete leftover files and folders:
- Select Go > Go to Folder.
- Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
- Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.
- Finally, empty the Trash to permanently remove the leftovers.
Reset Internet Explorer
Remove dangerous add-ons:
- Open Internet Explorer, click on the Gear icon (IE menu) on the top-right corner of the browser
- Pick Manage Add-ons.
- You will see a Manage Add-ons window. Here, look for suspicious plugins. Click on these entries and select Disable.
Change your homepage if it was altered:
- Open IE and click on the Gear icon.
- Select Internet Options.
- In the General tab, delete the Home page address and replace it by your preferred one (for example, Google.com).
- Click Apply and then select OK.
Delete temporary files:
- Press on the Gear icon and select Internet Options.
- Under Browsing history, click Delete...
- Select relevant fields and press Delete.
Reset Internet Explorer:
- Click on Gear icon > Internet options and select Advanced tab.
- Select Reset.
- In the new window, check Delete personal settings and select Reset.
Do not let government spy on you
The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices.
Avoid any unwanted government tracking or spying by going totally anonymous on the internet.
You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using VPN.
Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.
Backup files for the later use, in case of the malware attack
Computer users can suffer from data losses due to cyber infections or their own faulty doings.
Ransomware can encrypt and hold files hostage, while unforeseen power cuts might cause a loss of important documents. If you have proper up-to-date backups, you can easily recover after such an incident and get back to work. It is also equally important to update backups on a regular basis so that the newest information remains intact - you can set this process to be performed automatically.
When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware strikes out of nowhere. Use for the data restoration process.
From our report of Jan 2020 · not reviewed since
Cloud1.pw ads removal instructions
If you are seeing Cloud1.pw virus ads on your device, you most likely allowed the notifications from a suspicious website.
Here's how to do it:
From our report of Jan 2020 · not reviewed since
Google Chrome
- Pick Menu and select Settings
- Click Advanced
- Under Privacy and security, click on Site Settings
- Choose Notifications
- Under Allow section, you should see Cloud1.p
- Select More Actions and click on Block
From our report of Jan 2020 · not reviewed since
Mozilla Firefox
- Select Menu and then Options
- Click on Privacy & Security and then go for Notifications
- Go to Settings – you should see Cloud1.pw entry
- Click on the the drop-down menu and select Block
- Click Save Changes
From our report of Jan 2020 · not reviewed since
MS Edge
If you are suffering from the same problem on your Android phone you can stop Cloud1.pw virus ads as follows:
However, if you suspect the cause of unwanted browser behavior is adware, Cloud1.pw removal will require you to find a potentially unwanted program and delete it either manually or automatically. If you want a quick solution, download and install security software that has a PUP detection feature and perform a full system scan.
- Go to More and pick Settings
- Select View advanced settings and then pick Advanced
- Go to Manage permissions
- Find Cloud1.pw and turn off notifications
- Tap on the three dots at the top-right corner of Chrome browser
- Select Settings
- Go to Site settings or/and Notifications
- Select which sites are allowed to show you notifications
Questions about Cloud1.pw ads
Is Cloud1.pw a virus?
Most programs that appear the way Cloud1.pw did are not viruses in the strict sense. They are potentially unwanted programs:
- real software that arrives bundled with other downloads and then shows offers
- changes browser settings
- starts with Windows
Some are harmless, some are annoying and a few carry adware. What makes it worth removing is that you did not choose it.
Uninstall it from Installed apps and check the startup list and the browsers for anything added the same day. If it refuses to uninstall or returns after a restart, treat it as more serious and run a Microsoft Defender offline scan.
Cloud1.pw came back after I uninstalled it. Why?
Something else is reinstalling it. Common causes are a second program from the same publisher, a scheduled task that downloads it again, or a browser extension that keeps prompting for it. Sort Installed apps by install date and uninstall each entry from the same day that you did not choose.
Then open Task Scheduler and look in the Task Scheduler Library for tasks with updater-style names that you do not recognise. Check Startup apps in Task Manager too. If Cloud1.pw still returns, start Windows in Safe Mode, uninstall it there and run a Microsoft Defender offline scan, which looks for loaders that ordinary scans can miss.
Is uninstalling Cloud1.pw enough?
Often, but not always. Uninstalling Cloud1.pw through Settings > Apps > Installed apps removes the main part. Ad-supported programs, however, frequently arrive together with others from the same installer, and some leave a scheduled task or a browser extension behind.
After uninstalling, sort the list of installed apps by date and look at what else appeared that day, check Task Manager > Startup apps, and open the extension page in every browser. A Microsoft Defender full scan at the end catches leftover files.
Can an adware pop-up infect my PC just by appearing?
No. A pop-up, a notification or a new tab is only a web page or a message. It cannot run programs on Windows by itself, provided the browser and Windows are up to date. Infection needs a step from you:
- running a downloaded file
- installing an extension
- giving a stranger remote access
That is why scam pages work so hard to make you click. Close such pages with the tab's X or by closing the browser, not with buttons inside the page, which may start a download.
Why is my browser so slow since the ads started?
Each page now does extra work. An adware extension reads the page, decides where to put ads, loads them from ad servers and reports your visit, and that happens on every tab. Ad-supported programs add their own background activity.
Removing the extension or program usually makes the browser fast again at once. If it stays slow, open the browser's own task manager with Shift+Esc in Chrome or Edge and look for extensions using a lot of memory or processor time.
Did Cloud1.pw collect my data?
Adware typically collects what it needs to choose ads:
- the sites you visit
- search terms
- approximate location
- browser and system details
Extensions with permission to read and change data on all websites can technically see everything on those pages, including forms. That is a privacy problem rather than proof of theft.
If you typed card details or passwords while it was active, changing the most important passwords is a reasonable precaution. Clearing cookies after removal ends the tracking sessions it may have started.
My scan found nothing, but the ads continue. Why?
Because the source may not be a file a scanner looks for. Browser notifications are a permission stored in the browser, and many adware extensions are not flagged because they come from an official store.
Some ad-supported programs are only reported if you enable detection of potentially unwanted apps. So a clean scan does not mean the job is done. Check each browser's notification permissions and extension list by hand, and turn on Potentially unwanted app blocking in Windows Security before scanning again.
I let a "support technician" from an ad connect to my PC. What should I do?
Act quickly but calmly. Disconnect the PC from the internet first, so the connection ends. Uninstall the remote access tool they asked you to install and check Installed apps for anything else added during the call.
Run a Microsoft Defender full scan and offline scan. From another device, change your e-mail and banking passwords and sign out of all sessions.
If you paid by card, bank transfer or gift card, contact your bank or the card issuer immediately, and report the scam to the police. Do not answer if they call back.
Will Fortect remove Cloud1.pw?
Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.
For Cloud1.pw, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- Wikipedia: Social engineering (security) (read October 7, 2026)
- FTC: How to Spot, Avoid and Report Tech Support Scams (read October 7, 2026)
- Panda security: Do you use uTorrent? Careful with what it installs in your computer! (read October 7, 2026)
- Google Chrome Help: Use notifications to get alerts (no longer online) (read October 7, 2026)
- FTC: How to recognize, remove and avoid malware (read October 7, 2026)