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Some software I install creates various registry entries on installation.

The installation takes a really long time.

Once in a while I reinstall windows.

Instead of having to reinstall my software (which is stored on a separate drive), is there a way I can discover ONLY the registry keys that have been created after installation (of my software) and save it as a reg file, so that the next time I reinstall windows I can just update the registry by clicking on that file ?

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Microsoft have a tool to do this: Process Monitor

It is quite a complex tool for the beginner but there are some good usage tips on How To Geek

As a starter you can filter on Operations that begin with Reg:

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  • Sweet! but my pc is tagged Windows-XP. That link you linked to says Process Monitor runs only on Windows Vista or higher...omg lolz windows so cwazy.
    – Kaizer Sozay
    Commented Mar 21, 2017 at 3:43
  • That would be because XP is now completely unsupported by Microsoft! And Vista will be the same next month.
    – Shevek
    Commented Mar 21, 2017 at 7:00
  • You can get an older version which supports XP from here: oldapps.com/process_explorer.php the Registry functionality shouldn't have changed that much
    – Shevek
    Commented Mar 21, 2017 at 7:02
  • You also REALLY ought to think about an upgrade to Win 7 at least!
    – Shevek
    Commented Mar 21, 2017 at 7:02
  • I don't use Windows XP out of choice. I use it because I am forced to. For other development I use Win 7, 8 and 10. But XP is for legacy code.
    – Kaizer Sozay
    Commented Mar 21, 2017 at 8:42

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