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TutorialProduct key regenerator

Part 1 : Key regeneration list

To create the list of regenrated list to verify with the Ultimate PID Checker, you can use the Damaged product key regenerator tool
As you can see in available source code of the script is in pure javascript, no information are stored on
Anyway, if you really doubt of it (that's ok i would do the same !), just use the source code of the script localy on your computer available on github, the result will be the same.

Regenerate your product key list

  • Set your damaged key using ? as joker for missing letters
  • Select the list of possible char for this missing letter, by default all Microsoft possible chars are set
  • Start the key regeneration
  • Copy the result to a file

Part 2 : Verify key regeneration list

Once you got the list of possible product key, you need to download and use the tool the Ultimate PID Checker to test each one of them.
Some explanation on how to proceed :

1 Select options

  • Select the key target software
  • Set options you want, i recommand to choose to log result to be able to check in it once verification finished

2 Select key list file

  • Select the regenerated list file created in Part 1

3 Start verification

  • Start the verification process !

Part 3 : Results

Once done, the the Ultimate PID Checker main windows will warn you about working product key.
Also, you can find the working product key in log file by searching for the string ": Valid" (without quotes)
If you have more than one computer you can split the list to check product key simultanly on other computers to find faster the matching product key.

Verification can take really long time like around 5-15 keys tested by min in my case.
It took me 3 days with 3 computers running at same time to recover my Windows 7 CD Key with 4 unreadable characters.
Anyway it worked, product key has been found !
If you have any question, or if you found a bug on the Damaged product key regenerator tool you can contact me using the contact form
If you have trouble with the Ultimate PID Checker, you will have to see with his owner !
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