Quick Answer: How Do I Delete Old Operating System and Install New One?
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Create a USB recovery drive or an installation CD/DVD or USB memory stick with the operating system that you want to use next, and boot from it. Then, on the recovery screen or during the installation of the new operating system, select the existing Windows partition(s) and format or delete it (them).

Can I delete old OS after installing new one?

In the search box on the taskbar, type settings, then choose it from the list of results. Select System > Storage > This PC and then scroll down the list and choose Temporary files. Under Remove temporary files, select the Previous version of Windows check box and then choose Remove files.

How do I remove operating system from old hard drive?

Right-click the partition or drive and then select “Delete Volume” or “Format” from the context menu. Select “Format” if the operating system is installed to the entire hard drive.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.

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