Windows 10 How do you reinstall program files from windows.old?

Neemobeer

Cloud Security Engineer

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• Apr 17, 2019

• #2

You won't be able to. Plus programs should not be contained in the Windows directory.

 

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Cretos

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• Apr 17, 2019

• Thread Author
• #3

Why does windows save the files to windows.old then. I read online that you can reinstall them. It does not make sense. Since they are saved their must be a way to reinstall them.

 

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Neemobeer

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• Apr 18, 2019

• #4

It is the old version of your windows install. Even if there is program data in windows.old the only thing it's good for is rolling back the old system to the old OS version. There is no built-in or 3rd party tool available to pull content from the windows.old directory to re-install an application.

 

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Cretos

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• Apr 18, 2019

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• #5

I guess I don't see the point. I would rather windows not save these files then.

 

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Neemobeer

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• Apr 18, 2019

• #6

Well it's for roll back in the event the upgrade fails or if a user needs to rollback for say compatibility reasons. You can delete it through disk cleanup or just wait 30 days and it will be removed.

 

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