Remove Down Checker Ads from Chrome/ IE/ Firefox Completely

Seeing lots of ads, coupons and deals from Down Checker popping up in your browser would be your very first hint that your browser is infected by adware. At the meantime, your computer is in deep trouble.

What is Down Checker?

Down Checker is a potentially unwanted adware that often sneaks into users' PC without obvious notification via free programs downloaded from online resources, corrupt websites, malicious pop-ups, etc. When installed, Down Checker will automatically become available on users' browser.

After that, Down Checker may cause many problems, such as numerous pop-up ads, browser redirects, poor network environment, more chances to get infected with malicious infections, browser crashes, etc. Therefore, it is recommended to follow the below guide to get rid of Down Checker immediately.

How to remove Down Checker easily and thoroughly?

Method 1: Manually Remove Down Checker
Method 2: Automatically Remove Down Checker (Highly Recommended)
Optional Step: Fix Slow PC Performance by Using RegCure Pro

Method 1: Manually Remove Down Checker

1. Stop Down Checker running process in Windows Task Manager.

Press Ctrl+Shift+Esc together to open Windows Task Manager, click Processes tab, find suspicious running process and click on it, then click the End Process button.

2. Uninstall Down Checker in Control Panel.

Click Start > Control Panel > Uninstall a program > find suspicious program and right click on it select Uninstall to uninstall the program.

3. Remove Down Checker extension or add-ons from your browsers

Internet Explorer:
1) Start Internet Explorer and choose "Tools" >"Manage add-ons".
2) Choose "Toolbars and Extensions", then find and remove related programs.

3) Restart browser to complete the whole process.

Google Chrome:
1) Open Google Chrome, click on the "Customize and control Google Chrome" icon in top right corner.
2) Select "Settings" > "Extensions", then find and delete add-ons.

3) Restart the browser to complete the whole process.

Mozilla Firefox:
1) Start Firefox and choose "Tools" > "Add-ons"> "Extensions".

2) Search for related items and remove them.
3) Restart Firefox to complete the process.

4. Delete all the infection associated files

1) Open Control Panel in Start menu and search for Folder Options. When you're in Folder Options window, please click on its View tab, tick "Show hidden files and folders" and non-tick "Hide protected operating system files (Recommended)" and then press "OK".

2) All the infection associated files listed below need to be removed:

%CommonAppData%\<random>.exe
C:\Windows\Temp\<random>.exe
%temp%\<random>.exe
C:\Program Files\<random>

5. Remove all the infection registry entries

Hit Win+R keys, type "regedit" in Run box, and then click "OK" to open Registry Editor

Delete them all:

HKEY_LOCAL_MACHINESOFTWAREsupWPM
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesWpm
HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerMain "Default_Page_URL"
HKEY_LOCAL_Machine\Software\Classes\[adware name]
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\[adware name]

6. Restart your computer to take effect.

Method 2: Automatically Remove Down Checker (Highly Recommended)

What can SpyHunter do for you?

• Give your PC intuitive real-time protection.
• Detect, remove and block spyware, rootkits, adware, keyloggers, cookies, trojans, worms and other types of malware.
• Spyware HelpDesk generates free custom malware fixes specific to your PC
• Allow you to restore backed up objects.

1. Click on the below button to free download SpyHunter on your PC.

2. Click the "Run" button to enter the setup program and follow the installation steps until setup is complete.

3. When the installation is complete, click the "Finish" button to exit the installation.

4. If SpyHunter does not automatically start, click the icon on your desktop or Start menu to open it.

             

5. Allow the program to scan by clicking the "Scan Computer Now!" button. If you would like to have a quick scan on your PC, please check the "Quick Scan" box; otherwise, uncheck it.

6. The first scan will take some time, please be patient while waiting for the scanning result.

7. After the scan is done, you can see that all threats are successfully detected. Check the "Select All" box and then click the "Remove" button to fix all threats in your PC.

Note: SpyHunter's free version is only for malware detection. To remove the malware threats on your PC, you will need to purchase SpyHunter's malware removal tool.

Optional Step: Fix Slow PC Performance by Using RegCure Pro

What can RegCure Pro do for you?

• Fix system errors
• Remove malware
• Improve startup
• Defrag memory
• Clean up your PC

1. Click the below button to download RegCure Pro to your PC.

2. Click the "Yes" button to enter in installation process and then follow the instruction to install the program step by step.

3. When the program is successfully installed, double click on its desktop shortcut to open it. On the Overview tab, check all the scan settings and then click on the "Click to Start Scan" button to run a system scan on your computer.

4. The first system scan will take some time, please be patient. The screenshot of the system scan progress is shown below.

5. When the system scan is done, click on "Fix All" button to completely remove all the performance problems in your computer.

Note: You can download and use RegCure Pro with confidence for it doesn't contain any additional items and conflict with your current used antivirus program.

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In Summery:

Down Checker is really a trouble maker. If you are unlucky to have this adware installed on your PC, you should take action to uninstall Down Checker from the infected PC immediately in case of further troubles.

Download SpyHunter to remove Down Checker quickly.

Download RegCure Pro to optimize your PC easily.

Good Luck and be safe online.