Avast GrimeFighter: Undo changes made by the standalone version of Avast GrimeFighter

How undo changes made by an Avast GrimeFighter scan

If you experience any problem with the changes Avast GrimeFighter made to your computer in your most recent scan and clean, you can revert your computer to its previous state.

The steps below are for the standalone version of Avast GrimeFighter. To activate your license for GrimeFighter within Avast Antivirus, please read the following article:

This option is limited to 7 days of the cleanup, and only applies to the most recent cleanup.
  1. Run the file grimefighter.exe which you have previously downloaded to your PC.
  2. Click Undo all changes at the bottom of the screen. Click Undo to confirm.
  3. Your PC starts in GrimeFighter mode and the previous cleanup is reversed.
  4. Your system returns to Windows in its previous state, as it was before the most recent cleanup.
This option is limited to 7 days of the cleanup, and only applies to the most recent cleanup.

Please follow the detailed steps below to undo changes made by a recent Avast GrimeFighter cleanup.

  1. Run the file grimefighter.exe which you have previously downloaded to your PC.
  2. Click Undo all changes at the bottom of the screen. Click Undo to confirm.
  3. Your PC starts in GrimeFighter mode and the previous cleanup is reversed.
  4. Your system returns to Windows in its previous state, as it was before the most recent cleanup.

The undo process is similar to a system restore and can have unforeseen consequences if applied after much time has passed. For this reason the option to undo the changes is limited to 7 days of the clean, and only applies to the most recent cleanup.

If you would like to scan again, but select the specific changes to be made, you can review and edit changes before performing the final system cleanup as described in the detailed steps of the following article:

It is recommended to have a look around after any GrimeFighter scan, to be sure that everything is working properly and none of the changes interfere with your normal activities on the PC.

  • Avast GrimeFighter
  • Microsoft Windows 8.1 / Pro / Enterprise
  • Microsoft Windows 8 / Pro / Enterprise
  • Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate
  • Microsoft Windows Vista Home Basic / Home Premium / Business / Enterprise / Ultimate
  • Microsoft Windows XP Home / Professional / Media Center Edition

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