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Saturday, January 10, 2015

What is compatibilitycheck.exe and how to remove it?

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Compatibilitycheck.exe - by Ad Support.

What is compatibilitycheck.exe?

Compatibilitycheck.exe process is a part of an adware program that will display adverts on your computer. It comes bundled with other software, mostly potentially unwanted programs and freeware. Very often, it's installed in the background without your knowledge and permission. Once this adware is installed on your computer, you will notice that there are multiple processes (could be up to 20!) titled "compatibilitycheck.exe *32" and using 40% or more of your PC's resources. It does not have any version or vendor information. However, compatibilitycheck.exe is digitally signed even though its digital signature can't be verified at the moment. The biggest problem with this this is that you can't easily delete it because windows will tell you that these multiple instances of the file are being uses by another application. Once you end one of them using Task Manager another is quickly created. Compatibilitycheck.exe is not essential for Windows. What is more, it can crash your web browser and make your computer slower. I advise you to remove this adware and related malware from your computer. And don't forget to run a full system scan with recommended anti-malware software.

File name: Compatibilitycheck.exe
Publisher: Ad Support
File Location Windows XP: C:\Users\%USERNAME%\appdata\roaming\compatibility verifier\
File Location Windows 7: C:\Users\%USERNAME%\appdata\roaming\compatibility verifier\
Startup file: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run → compatibilitycheck.exe


Anonymous said...

I am experiencing problems getting rid of this persistent nuance.
I have gone to: C:\Users\%USERNAME%\appdata\roaming\compatibility verifier\
and deleted this folder from my main user and the default user paths. I have also gone to applications on task manager to disable it but sure enough it keeps coming back. I have an run antiadaware programs. How can I find the root cause of anywhere it its being activated from?

Anonymous said...

I had this problem and on at least 6 occassions after deleting the file from C:\Users\%USERNAME%\appdata\roaming\compatibility verifier\ I found it came back.
Its finally gone and this is how I did it.

1) Start in safe mode and delete the above if still there. I find it not just under my username but under default too. I also found another program called db21.exe that that was doing the same thing.

2) Under task manager, clikc the services tab, click the services button and disable the compatibilitycheck service.

3) Run a good anti-malware program, I used super anti-spyware free edition. It will help you remove unwanted programs.
However that alone still did not work

4)You need to access the start up programs for your PC
Click start and type msconfig. Under the services and startup tabs if you sort by Manufacturer you will see all the programs starting up when your system boots up. You can disable any suspicious software here. Worked for me

Anonymous said...

This solved our problem - brilliantly - thanx

Anonymous said...

I did the same as two posts above. Worked well. Thanks. It was very frustrating.

Anonymous said...

I'm using hijackthis from trend micro, free software. It lets you delete from the reg, but be very careful what you are deleting.

Thalongsinh Ty Thongdeth said...

oh yes that is crazy but I got rid of mine finnaly.
task manager
right click compatibilitycheck.exe select file location then leave that folder opened.
now disable compatibiltycheck.exe in the Task Manager one at a time normally it will have 5 or 6 of them
Take you time to do it.
when that s done go back to that folder and delete the whole directory from Roaming. and now shut down the computer after delete that.if you dont shut down at this time it will come back.

Anonymous said...

Fairly certain my compatibility check issue came along with my recent download of TeamViewer 10.0, which was also accompanied by a "db88" process. To rid myself of the bug, I started XPpro in safe mode and deleted the hidden compatibility folder in C:\Windows\System32. This seems to have corrected it.