Quick Answer: How to Uninstall Operating System?

How do I remove an operating system from my hard drive?

Steps to delete Windows 10/8.1/8/7/Vista/XP from system drive

• Insert the Windows installation CD into your disk drive and restart your computer;
• Hit any key on your keyboard when asked if you want to boot to the CD;
• Press “Enter” at the welcome screen and then hit the “F8” key to accept the Windows license agreement.

How do I delete my old operating system?

Here’s the proper way to delete the Windows.old folder:

1. Step 1: Click in Windows’ search field, type Cleanup, then click Disk Cleanup.
2. Step 2: Click the “Clean up system files” button.
3. Step 3: Wait a bit while Windows scans for files, then scroll down the list until you see “Previous Windows installation(s).”