The File Extensions Database


.PCU File Extension

  • Developer by: PC MightyMax
  • Category: Backup Files

What is an .PCU file?

.PCU is PC MightyMax undo data

The pcu file extension is mainly related to PC MightyMax registry utility and used for one of its main file types.

These pcu files contain saved list of Windows registry changes made by the program during registry clearing, so they can be undone should the user wish it.


How to open:

Used to restore original state of Windows Registry before the cleaning process.

How to convert:

Probably cannot be converted to other formats.

How to solve problems with PCU files

  • Associate the PCU file extension with the correct application. On :
    Windows: Right click on any PCU file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.PCU files". Mac: Right click (or Ctrl-click) the PCU file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .PCU is PC MightyMax undo data. Because only the current version supports the latest PCU file format. Search, therefore, e.g. on the PC MightyMax manufacturer website after an available .PCU is PC MightyMax undo data update.
  • To make sure that your PCU file is not corrupted or virus-infected, get the file again and scan it with antivirus software.