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How to Remove AVG Completely to Install Kaspersky

In case you have installed any AVG product (AVG Anti Virus version 7 or 8), Kaspersky will not install showing incompatible software installed error even if you have uninstalled AVG using the control panel. This happens because the AVG has made registry entries while installing and this has not been removed even after uninstall. Kaspersky will not install and will give out incompatible software installed error as long as the registry values are not deleted.


To remove the AVG registry entries, open Registry Editor (Start-> Run-> Regedit). In the registry editor, navigate to the entries mentioned below,


Right click on these entries and then delete them. If you are not comfortable about deleting registry entries, you can use a free registry cleaner. If you are using a 64 bit machine, then these are the entries to be removed.


Once these entries are removed, Kaspersky installation will be completed normally. Alternatively you can also use the AVG cleaner or Kaspersky removal tool for AVG8.

About Nirmal

Nirmal is a Technology Blogger and a Microsoft MVP in Windows. He can be contacted at nirmal@nirmaltv.com. You can find Nirmal on , and .


  1. can revo uninstaller do the job?

    i did it myself a few months back, but truth is i don’t remember what i used

    i think it was a combo of the avg uninstaller and revo (damn that failing memory)

  2. many many thanks NIrmal..YOU ARE MY MAN!!I I’ve been searching for long time to solve this problem.thanks a lot.

  3. ur the man..thanks a lot

  4. i tried what u did and opened run and typed in regedit and it came up with nothing in it !

  5. i tried all of the above in an effort to remove the remaining files after uninstaling avg8 freeware from controle pannel …the only one that worked for me is CCleaner ..i was then able to install kaspersky antivirus with no problems …hope this helps you guys

  6. oiii nirmal puttar
    thanx a lot
    it works for me

  7. Thank u very much I am sufferring from the problem of kasparosky

    This worked perfectly!!

  9. This worked great! Thanks so much

  10. i face the same problem with norton to be deleted before installing kasper

    but i made every thing but still hav the problem………so what can i do for solving this problem??

  11. Dynamite, fixed my problem. Thanks a lot dude.

  12. thanks! this was the only thing i found that would work.i did exactlly as u said. it works!

  13. i met aproblem in removing avg antivirus from my vista laptop.
    operating system closed.no more desplay my laptop.avg free down load user.dated feb15/2010.

  14. thank u sir

    i learn a lott from ur siteee

    plzz update ur site regularly

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