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I was trying to uninstall Python 3.11 from my Windows 11 Pro 24H2 laptop.

When I tried from: Windows Settings → Apps or Control Panel → Programs and Features the uninstallation failed multiple times.

It showed errors like:

Could not set file security for file 'D:\Config.Msi\e9e4050.rbf'. Error: 5.
Verify that you have sufficient privileges to modify the security
permissions for this file.

How can I uninstall Python 3.11 properly?

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    The error message is a hint that Python was installed with administrative privileges. Is your current account an administrator one? Commented Sep 30 at 12:36

1 Answer 1

Reset to default
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What worked for me was using the original installer:

  1. Go to your Downloads folder (or wherever you saved the Python installer executable).
  2. Right-click the installer and select Run as administrator.
    Image
  3. The Python setup window opens with options: Modify, Repair, or Uninstall.
    Image 2
  4. Choose Uninstall.

This removed Python 3.11 successfully, when uninstalling through Settings or Control Panel kept failing.

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2 Comments

Absolutely absurd that this is what it takes to resolve this, but this is what did it for me!
I received this same error today while updating LTSpice. I deleted the config.msi folder, but it was created when I launched the updater again. I had to uninstall LTSpice using the Programs and Features Control Panel, delete the config.msi folder, download the installer and reinstall LTSpice to resolve the problem. I agree with MaxPRafferty.

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