What is DealDay?
DealDay is a shopping helper that is known as an ‘adware’ and a ‘potentially unwanted program’ (PUP). This program by nature is suspicious so the best thing that you can do is avoid this app or remove it once detected on the computer. Even though it boosts having a powerful search that can find the best deals, discounts, coupons and similar things related to online shopping, you should NOT believe that. It seems that this app is solely used for marketing purposes and cannot provide you with anything beneficial. The first thing that you have to know about this app is related to its distribution method. It does not have the official website and cannot be downloaded anywhere else as an individual app. The most commonly applied distribution method for this app is known as ‘bundling’, which means that DealDay can be distributed as an optional component of other freewares. This way, the adware manages to infiltrate hundreds of computers without being noticed. Isn’t that tricky?
Of course, it’s distribution is an alarming sign suggesting that DealDay is not the app that should be trusted. Nevertheless, once installed, it may start causing a serious havoc. It may hijack all web browsers that are installed on your computer (Google Chrome, Mozilla Firefox, Internet Explorer) and start tracking your online activities. Despite the fact that it can gather only personally non-identifiable data (IP address, PC’s location, email address, search terms, websites visited, clicks, etc.), it’s yet another alarming sign indicating that cookies are installed on your machine and that third-parties can easily access your computer. Even more, DealDay virus may slow down your computer, increase security vulnerabilities and then cause redirects to third-party websites that may contain really suspicious content, for example, other PUPs. Thus, if you have already started receiving ‘Ads by DealDay’, ‘DealDay Ads’, ‘Powered by DealDay’ or similarly marked advertisements, we highly recommend you to ignore each of them. Otherwise, you can be redirected to suspicious websites and even tricked into installing suspicious apps on your machine. The ultimate way to protect your computer from DealDay redirects is to run a full system scan with FortectIntego (Windows OS) or FortectIntego (Mac OS X).

How can DealDay hijack my computer?
As we have already mentioned, it’s not possible to download DealDay directly because it does not have the official website and cannot be downloaded from other downloaded sources on its own. Nevertheless, it’s possible to install it via other freewares, for example, various download managers, PDF creators, media players, and so on. Unfortunately, this way DealDay virus usually gets into the computers without being noticed. If you are not willing to install and use it, you should install free software with extreme carefulness. No matter what download source you select, make sure that you opt for Advanced or Custom installation option and monitor the entire process step-by-step. Otherwise, you may start experiencing various troubles, such as browser’s redirects, security vulnerabilities, slowdowns, DealDay ads, and so on. In case these issues have already started bothering you, you should follow these steps:
How to remove DealDay virus?
Uninstall from Windows
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.

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.
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.

Instructions for Chromium-based Edge
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)
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.

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.

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.

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