Sometimes, you may need to find out when Windows was installed, such as when you bought a used computer. It may seem like a difficult task, but it's actually quite simple. This wikiHow article will teach you how to find out when Windows was installed.

Steps

  1. Open Command Prompt . Click on Startand type cmd into the search box. Then, click on "Command Prompt".
  2. 2
    Type systeminfo into Command Prompt. It will then begin loading the results.
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  3. 3
    Scroll up and look for "Original Install Date". It is located near the top under, "Product ID" and, "System Boot Time". This will give you the exact installation date all the way down to the second.
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