How to determine if a PC has a clean or upgrade installation of Windows 10

Windows Central

WinC Bot
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Dec 17, 2013
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Have you ever wondered if you're running an upgrade or clean install of Windows 10? In this guide, we'll show you how to tell.
windows-10-clean-or-upgrade.jpg

Windows has received numerous releases through the years, and if you had the same computer for a long time, you probably went through a lot of upgrades.
If you're ever curious to see the upgrade history that led to the latest version on your system, Windows 10 doesn't reveal such information. However, you can use the Registry to accurately determine whether you're running an upgrade or clean install of Windows 10 and the number of times a new version of the OS has been installed.
In this Windows 10 guide, we'll walk you through the steps to use the Registry (without having to modify anything) to check what type of installation you have. Additionally, we'll help you to answer other questions, such as which was the original version installed on your device, and the times an upgrade was applied with the exact date.

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