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ACSheehy's avatar
ACSheehy
Copper Contributor
Jan 16, 2019
I also have this problem... Office 365 installed. Can't rollback for some reason, says the newer version is installed. Reboot does not fix the issue. Nor does re-registering the installer.
  • Jason Purviance's avatar
    Jason Purviance
    Copper Contributor
    Jan 22, 2019

    I had the same issue on Windows 10 when upgrading.  Rebooting didn't work, uninstalling etc..

     

    I ended up searching for "Azure" in RegEdit and deleted two records similar to the ones in these screenshots. The Key name might be different for but if you search for Azure in that general area and find these delete them.  I just deleted the whole key and sub contents (MAKE BACKUPS FIRST, OR USE ON A NON-PRODUCTION TEST MACHINE) then tried to reinstall immediately worked, I'm now back to labeling files. 

    • Ofir Doron's avatar
      Ofir Doron
      Copper Contributor
      Apr 30, 2019

      Jason Purviance

       

      I had the same error,

      my search was for: "Microsoft Azure Information Protection"

       

      The registry keys i had to delete were:

      [HKEY_CLASSES_ROOT\Installer\Products\81F60A84C159AC24681F0364FA601DE5]

      [HKEY_CLASSES_ROOT\Installer\Products\993BF6477B270F046B2A7D4C218275F2]

       

      Afterwards the installation was completed.

       

      • Beancurd's avatar
        Beancurd
        Copper Contributor
        Nov 19, 2020

        Ofir Doron I made a one-liner to remove the keys which should make your life much easier. 

        for /f "tokens=1" %%a in ('reg.exe query "HKCR\Installer\Products" /f "Microsoft Azure Information Protection" /s  ^|findstr /ri "Installer"') do reg delete "%%a" /f



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