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pete_39's avatar
pete_39
Copper Contributor
Jun 19, 2026

repair or replace windows11 operating system

I have a legit windows11 OS on my computer but it ran very slow. In trying to speed it up I have ended (or removed some critical files). For example, I deleted the WinZip capability and also my sound driver and other needed capabilities. To get windows11 working properly again (although slow) is it best to do some kind of repair or is it/can I download (reinstall) the ISO file from Microsoft? If I reinstall, do I need to delete anything before I reinstall?

Pete

configuration

1 Reply

  • KapilArya's avatar
    KapilArya
    MVP
    Jun 21, 2026

    First option:

    You can try a Reset keeping your files.

    This would reset your settings, clean up unnecessary things using your system resources.

    Second option:

    Perform a Reset by delete files or simply do a clean install. 

    Backup everything and clean your drive, this would remove everything - files and apps. 

    If you need detailed instructions, let me know.

    Hope this helps!