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Find out the serial number (product key) for Windows XP/Vista/7 and Office 2003/2007/2010.

February 1, 2011
Updated: April 14, 2022
Quick overview:

The following question is - quite rightly - one of the most frequent support requests:

"I want to reinstall Windows: How do I find my serial number for XP/Vista/7 and Office 2003/2007/2010?"

When reinstalling or moving, there is hardly anything more annoying than searching for serial numbers. Windows-Tweaks shows you how to display and securely store Windows and Office product keys in no time at all. This is how it works:

1. Click on the Link here to download the WinKeyFinder 1.74 (Beta) to your hard disk. Unzip the file and double-click on the "WinKeyFinder174.exe" contained in the archive.

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2. The Windows product key is displayed under "Windows XP, Vista, 7". In the example:

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3. When you click on "MS Office", you should also see the key for your Office edition. This worked perfectly for the 2003 and 2007 versions in the test, but not without exception for Office 2010 on all test devices.

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Do you see this message for Office 2010? Then you have two options: You wait until this problem is fixed in WinKeyFinder has been solved or you use the - unfortunately somewhat more complex - LicenseCrawler 1.2. If you have decided to use LicenseCrawler, proceed as follows:

1. after starting the program, you must first click on "Search" and hide the advertising message that appears. Here's how:

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2. the Office 2010 serial number is then displayed in the following section:

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Look for the keywords "Office14.0" in the first line. Under "Serial Number" you can copy and paste the serial number!

Looking forward to your feedback!

Founded Windows Tweaks as a teenager in the 90s. His helpful PC tricks made it Germany's most visited Windows site (at the time Sandro looked like this). He then went on to write elsewhere, for example for PC-Praxis, Computer Bild and PCWorld in the USA. Microsoft also poached him from us. Now Sandro is back, finally sharing his tweaks here again. For a stress-free digital everyday life. You can reach Sandro via e-mail.

2 comments on: Finding the serial number (product key) for Windows XP/Vista/7 and Office 2003/2007/2010.

  1. Hello,

    I recently tested a similar tool. It's called Recover Keys. It finds over 3000 program product keys/serial numbers (including all Windows versions) and can also search entire networks. So a little more comprehensive.
    I find the tools very helpful. Not only can you find out a serial number, you can also make a backup of all existing serial numbers (which the program also knows). That can save your butt 😉

    Best regards
    Gordon

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