Windows 10: How do I delete all files except for Windows 10 OS

I want to delete all my files except for the Windows 10 OS

How do I do this? I don't have a USB so I can't redownload Windows 10

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:)

 

I deleted $Windows~.BT folder that was propably Windows 10 files. How to recover?

Hello,

So about two weeks ago I deleted a $Windows~.BT folder (through the cmd). Now I know that was Windows 10 files ready for install.

How can I download it again? I'm sure I need to reinstall some update. But which?

Tintai

 

How do I DISassociate a file type in Windows 10?

I inadvertently associated a .lst file to open using my Adobe reader. I have followed all the steps you suggested and deleted everything listed. It still shows that Adobe is the default app to use with the file. Any other suggestions?

 

How do I delete registry files?

type in regedit in the search box and press enter. Then from here on, DO NOT TOUCH ANYTHING UNLESS U KNOW WHAT UR DOING!! Go to Hkey_Local_Machine > Software > Then a list of program registry keys will pop up, delete anything that is uninstalled. Make sure u backup the keys unless something goes wrong. To backup, you do: Select a group of keys on the left pane > Right click > Export > name it "whatever.reg" > save it. To import the backup, click the reg file and click "merge"