windows 10 installed can I delete 8.1?

[WPCentral Question]

To free up disc space after installation of Wndows 10 can I remove the older windows 8.1. OR save it in OneDrive?

 

[JoyfullJuneBug]

Just run Disk Cleanup you should find a folder named old computer files check the box and run cleanup it will get rid of 8.1 FYI in a month from the day you install windows 10 Microsoft will delete those files themselves.