Dev360 Cleaner: what it is and how to remove it
"Dev360 Cleaner virus" is a term used by less experienced users to describe a suspicious system optimized tool that has appeared on their computer out of the blue. The security experts, however, classify it as a potentially unwanted program.
Facts checked October 6, 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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Dev360 Cleaner: summary
| Detection names | No Microsoft detection name is known |
|---|---|
| Distribution | Not recorded in the old report |
| Damage | Not recorded in the old report |
| Name | Dev360 Cleaner |
| Type | System optimizer |
| Symptoms | An unknown program in Installed apps |
| 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 4 more facts
| Evidence | One write-up by a security site; details still limited |
|---|---|
| Program | Dev360 Cleaner |
| First seen | 27 January 2021 |
| Facts checked | 6 October 2026 |
Is Dev360 Cleaner safe? Why it is flagged
From our report of Jan 2021 · not reviewed since
Dev360 Cleaner is a potentially unwanted program that shows fake system errors
"Dev360 Cleaner virus" is a term used by less experienced users to describe a suspicious system optimized tool that has appeared on their computer out of the blue.
The security experts, however, classify it as a potentially unwanted program. Even though this tool looks legitimate and is promoted as a useful application significantly enhancing the system's performance, in reality, there are a lot of questionable features it possesses.
We have already mentioned that the program appears on the system unexpectedly, which might only suggest that it must have infiltrated it deceptively. In fact, Dev360 Cleaner uses the so-called bundling technique to get into the users' computers.
This method is mainly used in the distribution of potentially unwanted programs such as adware or browser hijackers. Therefore, it is rather suspicious when the supposedly legitimate program creators choose such deceptive marketing techniques. If you have never had any intention of downloading and using this program, remove Dev360 Cleaner from your computer unhesitatingly. Why waste your computer's resources on a program you don't need?
As we mentioned, Dev360 Cleaner is not a virus, but if it entered your computer unnoticed, potentially dangerous programs may have been installed the same way too, so we suggest scanning your computer with a reliable antivirus tool, such as or , after uninstalling this PUP.
However, some users may be tricked into thinking that this tool is actually useful. Once Dev360 Cleaner settles in the system it will start scanning the computer for errors and then provides the user with highly over-exaggerated results.
If the user does not agree immediately, the Dev360 Cleaner will schedule scans and keep informing about the critical state of the system. It is also questionable whether the full version of the software will be capable of eliminating these supposed threats as well.
The users' reports are not reassuring either. The Internet is full of complaints posted by the users who have downloaded this program on their computers, expecting this system optimizer to perform as promised but left disappointed by its actual performance
Besides, there are a number of acknowledged and tested tools that you can use instead. Just make sure you do a little research about them in advance.
From our report of Jan 2021 · not reviewed since
Advanced installation method can help to avoid PUPs in the future
If you do not remember downloading or installing this program on your computer, it is likely that it infiltrated the system stealthily, using the already mentioned "bundling" technique.
To elaborate more about this method, it should be pointed out that bundling is based on attaching the potentially unwanted programs to legitimate freeware or shareware applications. This way, the software bundle installs as a single program and the users have no idea that additional software has been added to the computer.
Luckily, there is a way to determine, whether the software package contains any extra components or not. In the downloaded software's setup choose "Advanced" or "Custom" installation mode and follow the next steps carefully. Opt-out the unnecessary components and proceed with the installation only with the desired programs.
From our report of Jan 2021 · not reviewed since
More from our earlier report on Dev360 Cleaner
- The scan shows hundreds of errors and the user is encouraged to purchase a full version of the program to fix them.
How to uninstall Dev360 Cleaner
How to remove Dev360 Cleaner
Uninstall it, then remove what keeps it starting with Windows.
Nothing it flagged needs fixing.
Step 1: Uninstall Dev360 Cleaner
Dev360 Cleaner is removed like any other program, from the list of installed apps. In Windows 11 that is Settings > Apps > Installed apps, in Windows 10 Settings > Apps > Apps & features, and in both you can also use Control Panel > Programs and Features.
Select Dev360 Cleaner, click Uninstall and follow the uninstaller to the end. Then look at the entries just above and below it when the list is sorted by date: bundled programs install at the same minute.
Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix
Step 2: Remove it from startup
Press Ctrl + Shift + Esc to open Task Manager and select Startup apps (Windows 11) or the Startup tab (Windows 10). Disable entries you do not recognise, especially ones with no publisher or with a name that copies a Windows component.
Right-click an entry and choose Open file location to see where it runs from: programs in
%AppData%or%Temp%deserve a closer look. Some entries are not listed there but in the registry Run keys, which the procedure below shows how to check.Full procedure with screenshots: Stop apps from opening at startup On uGetFix
Step 3: Delete the folders left behind
Uninstalling often leaves the program's folders, and some threats reinstall themselves from them.
Press Windows + R, type
%LocalAppData%and press Enter, then do the same for%AppData%and %ProgramData%, and look for folders named after Dev360 Cleaner, its publisher or created on the day the problem started.Delete those folders, and check
C:\Program FilesandC:\Program Files (x86)too.If Windows says a file is in use, end it in Task Manager or delete the folder after a restart in Safe Mode. The folders are the same in Windows 11 and Windows 10.
Full procedure with screenshots: Remove what malware leaves behind in Windows
Step 4: Scan the PC, then run the offline scan
A scan finds the parts of Dev360 Cleaner that the manual steps cannot see. In Windows Security > Virus & threat protection > Scan options, start a Full scan and quarantine what it reports.
Follow it with Microsoft Defender Antivirus (offline scan) > Scan now, which restarts the PC and checks the disk while Windows and the malware are not running.
It takes about 15 minutes and works the same in Windows 11 and Windows 10. If either scan finds something, run the full scan again after removal until it comes back clean.
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
If you want to delete potentially unwanted program from Windows computer, remember these instructions:
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)
Follow these steps if you want to delete PUP from Mozilla Firefox:
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
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 PUP traces from 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.
Stream videos without limitations, no matter where you are
There are multiple parties that could find out almost anything about you by checking your online activity.
While this is highly unlikely, advertisers and tech companies are constantly tracking you online. The first step to privacy should be a secure browser that focuses on tracker reduction to a minimum.
Even if you employ a secure browser, you will not be able to access websites that are restricted due to local government laws or other reasons. In other words, you may not be able to stream Disney+ or US-based Netflix in some countries. To bypass these restrictions, you can employ a powerful VPN, which provides dedicated servers for torrenting and streaming, not slowing you down in the process.
Data backups are important - recover your lost files
Ransomware is one of the biggest threats to personal data.
Once it is executed on a machine, it launches a sophisticated encryption algorithm that locks all your files, although it does not destroy them. The most common misconception is that anti-malware software can return files to their previous states. This is not true, however, and data remains locked after the malicious payload is deleted.
While regular data backups are the only secure method to recover your files after a ransomware attack, tools such as can also be effective and restore at least some of your lost data.
From our report of Jan 2021 · not reviewed since
Remove Dev360 Cleaner from your PC
Since this application is not a virus, Dev360 Cleaner removal should not be too complicated.
You simply have to uninstall it as you would with any other regular programs. Follow the steps below:
There may be additional potentially unwanted programs or much more serious problems on your system.
- Click Start → Control Panel → Uninstall a Program.
- When in the Add/Remove Programs/Uninstall a Program, look for Dev360 Cleaner and other unfamiliar programs.
- Click 'Uninstall' and then OK to save the changes.
Questions about Dev360 Cleaner
Can I safely uninstall Dev360 Cleaner?
If you did not install Dev360 Cleaner yourself and it is not part of your hardware or a program you rely on, yes. Uninstalling an unwanted program does not harm Windows. Before you do, search the exact name and publisher to be sure it is not a driver tool, a printer utility or a game launcher with an odd name.
Then remove it from Settings, Apps, Installed apps. Ignore any offers or warnings in its uninstaller about losing protection or performance. Afterwards check Startup apps and your browsers for leftovers, and restart once to confirm that it does not reinstall itself.
Dev360 Cleaner will not uninstall. What can I do?
First restart the PC and try again, because the program may have been running and locked its own files. If the uninstaller is missing or fails, start Windows in Safe Mode, where most third-party programs do not start, and remove Dev360 Cleaner from Installed apps there.
If it still refuses, delete its startup entry and its scheduled task, restart, and try once more. A program that actively prevents removal is behaving like malware, so finish with a Microsoft Defender offline scan. Avoid third-party uninstallers offered on search ads; several of them are unwanted programs themselves.
How do I know if I need Dev360 Cleaner?
Ask three questions. Did you install it on purpose? Have you ever opened it?
Does anything you use depend on it? If the answers are no, you do not need it. The sign that brought you here, dev360 Cleaner in the list of installed apps, suggests it arrived without a clear choice.
Programs bundled with free software rarely do anything their host program needs. Uninstall it, restart, and see whether anything you rely on stops working. If nothing does, which is the usual outcome, you can forget about it.
Dev360 Cleaner will not uninstall. What can I do?
Close it first: in Task Manager, select every process with its name and click End task, and exit its tray icon. Then uninstall it from Settings > Apps > Installed apps. If the uninstaller fails, shows an error or just reopens offers, restart Windows in Safe Mode, where third-party programs do not start, and uninstall from there.
Afterwards, delete its folders in C:\Program Files and %AppData%, remove its scheduled tasks and run a full scan in Windows Security. As a last step, System Restore to a date before the install can help.
Will removing Dev360 Cleaner speed up Windows?
It often helps a little and sometimes a lot, depending on how many programs came in the same bundle. Every unwanted program that starts with Windows adds to boot time and uses memory. The one behind dev360 Cleaner in the list of installed apps is no exception.
Remove it, check the Startup list for others, restart and compare. If the PC is still slow, look at disk space, Windows updates and the processes at the top of Task Manager. A clean PC should sit almost idle when no programs are open.
How do I stop programs like Dev360 Cleaner from installing?
Turn on Potentially unwanted app blocking in Windows Security > App & browser control > Reputation-based protection settings, with both Block apps and Block downloads checked. Download programs from the developer's own site or the Microsoft Store, choose Custom in installers and untick extra offers, and treat large download buttons on file sites as ads.
Apps from the Microsoft Store are checked by Microsoft and uninstall cleanly. Keep real-time protection on, so that bundled offers flagged as unwanted are stopped before they install.
Why does Dev360 Cleaner reinstall itself?
Programs like Dev360 Cleaner are often installed with an updater or a companion app whose job is to keep them present. When you uninstall the main program, the helper downloads it again at the next scheduled run or restart.
Find the helper by sorting Installed apps by date and by checking Task Scheduler and Services for entries with the same name or publisher. Remove them all, then delete leftover folders. Turning on Potentially unwanted app blocking in Windows Security also stops many reinstall attempts.
Is Dev360 Cleaner harmful?
It is unwelcome rather than destructive, based on what has been reported: dev360 Cleaner in the list of installed apps. Unwanted programs like this slow Windows down, use your connection, show offers or change settings, and they make money for their publisher at your expense. The bigger concern is what arrived with them.
Bundled installers often add two or three programs at once, and some of those change the browser or install updaters that fetch more software later. Remove Dev360 Cleaner, then sort Installed apps by date and remove anything else from the same day. A full scan in Windows Security afterwards confirms that nothing more serious came along.
Is Dev360 Cleaner safe to keep?
It is not dangerous in the way malware is: it does not steal passwords or encrypt files. It can still cost money through subscriptions, show ads that lead to scam pages, collect usage data and slow the start of Windows. If you installed Dev360 Cleaner on purpose and find it useful, you can keep it:
- turn off start with Windows
- offers and data sharing in its settings
- choose Custom during updates
If you do not know where it came from, remove it, together with anything installed on the same day.
Will Fortect remove Dev360 Cleaner?
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 Dev360 Cleaner, 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
- FTC: How to recognize, remove and avoid malware (read October 6, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 6, 2026)
- Microsoft Learn: How Microsoft names malware (read October 6, 2026)