Windows.old after a reset won't delete.

[Windows 10]

I have a Windows.old folder after a PC reset to factory settings that I can't delete, I see the folder in file explorer, I try to delete it but it says that I do not have permissions to do so I check disk cleanup and temporary files in settings app but there isn't previous installations of Windows or Windows.old name. I can't see Windows.old anywhere but file explorer. And the folder only has a few folders, first one is named Windows which has a System32 folder in it which has a WDI folder in it that I can't open. Can I even delete it or it will stay or disappear on its own.

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