RockXP v4.0

A Full Review of RockXP, a Free Key Finder Tool

Screenshot of RockXP v4.0
RockXP v4.0.

RockXP is a small, easy to use, and completely free key finder program.

RockXP has no trouble finding the product key for your Windows installation or for any of your other Microsoft programs like Microsoft Office.

Aside from the fact that many antivirus programs mistakenly identify RockXP as malware, it can be an extremely useful tool when you've lost that super-important product key!

Important: Please read my Key Finder Programs FAQ for more information on key finder programs in general.

Download RockXP

Note: This review is of RockXP v4.0. It's a beta version and hasn't been updated in a long time, but if a new version happens to be released, please let me know so I can update this review.

More About RockXP

Here are some more details on RockXP, including what major operating system and software programs it finds product keys and serial numbers for:

Finds Keys for Operating Systems: Windows XP (officially) and also Windows Vista, Server 2003, 2000, ME, and 98

Finds Keys for Other Software: Microsoft Office 2007 and Office 2003


  • No installation required
  • Small download size
  • Allows product key retrieval for all Microsoft programs installed on PC
  • Features ability to change the XP product key
  • Includes a password generator
  • Windows XP activation files can be backed up and restored


  • Some anti-virus programs identify RockXP as a malware application
  • Key finding abilities limited to major Microsoft programs

My Thoughts on RockXP

Among the free product key finder programs available, RockXP is a pretty decent choice. The download is small, there's no permanent installation required, and it's completely free. That's hard to beat.

In my tests of version 4.0, RockXP correctly identified the product keys for Microsoft Windows XP and Microsoft Office 2007. RockXP may also find the product key or CD key for other programs that encrypt keys in the Windows Registry.

A password generator feature is also packaged with RockXP. While this isn't directly related to finding lost product keys, it is a handy feature you may find useful. You can also easily change the Windows XP product key, though there are few legitimate uses for this feature.

The only problem I had with RockXP was the fact that my antivirus program identified it as malware. The developer acknowledges this issue and attributes it to the way in which the program identifies product keys. I would advise you to make your own judgment here as far as using RockXP, but I have yet to have a problem myself nor hear of anyone else experiencing issues due to RockXP.

Though not necessarily a problem more than just a lack of features is the fact that RockXP can not find product keys for the newer versions of Windows like lots of other key finder programs can. But since the software hasn't been updated in quite some time, I suspect that support for newer versions of Windows and MS Office will never come around.

However, RockXP is completely free, easy to use, and finds product keys fast. I recommend giving it a shot if you need to locate yours!

Didn't find what you were looking for with RockXP?

Try another free key finder program like Winkeyfinder or LicenseCrawler, or maybe even a premium key finder tool.

Download RockXP