I installed a piece of software a long time ago and have kept it up to date. Unfortunately, some of the features have recently been lost after an update.

I attempted to uninstall it from my system and am now trying to install an older version again but it keeps saying that you cannot install an older version. I have checked HKEY_LOCAL_MACHINE->SOFTWARE in the registry, but I can't find an entry for that software.

Can anyone tell me the reason that this may have happened and how to overcome it?

  • It might be worth mentioning what the software is that you are having trouble with. This is because keys written to the registry are usually specific to the software that you're using, so the answer to this question will be based on that. Aug 1, 2014 at 16:36
  • YTD Video Downloader
    – DCoder
    Aug 1, 2014 at 16:40
  • @DCoder - Update your question. Without more specific information, how you remove all traces of this application, cannot be provided.
    – Ramhound
    Aug 1, 2014 at 16:43
  • what else information I should provide?
    – DCoder
    Aug 1, 2014 at 17:42

2 Answers 2


You might want to try Revo Uninstaller. Revo Uninstaller has many features to scrub the "remains" of left over trash from installed programs including registry entries. Care should always be given to using these types of tools.

  • While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes.
    – CharlieRB
    Aug 1, 2014 at 16:48
  • 1
    @rrirower please go ahead and edit that into your actual answer. Aug 1, 2014 at 16:56
  • Revo Uninstaller did the job very well...
    – DCoder
    Aug 1, 2014 at 20:24

Another great option is CCleaner. It will remove the garbage and also has a great registry cleaner. Best of all it's free and well maintained. The developers are constantly pushing out new editions with many enhancements.

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