Windows 8 and 8.1 Forums


Should I delete leftover registry entries

  1. #1


    Posts : 156
    Windows 8.1 Pro 64-bit, Windows 10 64-bit

    Should I delete leftover registry entries


    Hello,
    As I using Windows long time and have uninstall and install many apps and the uninstalled apps left some registry entries, most of the entries is under HKEY_Current_User\Software and HKEY_Local_Machine and many keys name is same as the uninstalled apps, does it is safe to delete the entries?

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  2. #2


    Posts : 356
    Windows 8.1 Enterprise


    I sometimes encountered problems re-installing applications after normal uninstall and manual registry key deletions of same applications.

    Could be because these keys can be associated with files which are still present in program files folder and other locations, so deleting these folders is what I would do. but still re-installation could be incomplete some times.
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  3. #3


    Posts : 156
    Windows 8.1 Pro 64-bit, Windows 10 64-bit


    So should I delete these entries?
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  4. #4


    Posts : 2,130
    Windows 8.0 x64


    I have had very good luck using CCleaner

    Before cleaning the Registry it is a good idea to make several backups. I make a Restore Point. CCleaner offers to make a backup .reg file(I advise doing this.) Also there are Registry backup freeware programs such as ERUNT and Registry Backup among others.

    Once you are backed up with the 3rd party programs and/or a Restore Point I would run CCleaner and use the Registry cleaner tool. I have used CCleaner steadily the last few years. There was one version that had a bug in the Registry cleaner. The next update it was fixed. It worked so well I got complacent and didn't save the .reg file before doing the clean. Fortunately I had a Restore Point. But I haven't had any issues with it since. Now I just make backups to the Registry just in case. I make a backup every day just in case some minor corruption happens I can set it straight.

    CCleaner is very good at getting rid of dead file associations. That's one very good reason to use it. If I uninstall something like an AV program that doesn't always clean up all its data during uninstall, I run CCleaner Registry clean after the uninstall to clean out the crap.

    Also it never hurts to have a backup imaging tool to recover from a system that won't boot from the HD. There are many excellent free and paid ones these days. I use Macrium Reflect to image my system partition. But there are several free ones listed here:
    TheFreeCountry disk utilities
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  5. #5


    Posts : 156
    Windows 8.1 Pro 64-bit, Windows 10 64-bit


    Thank you. So should I delete the entries directly in regedit or delete it in ccleaner because ccleaner will not delete the whole entries?
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  6. #6


    Posts : 356
    Windows 8.1 Enterprise


    Quote Originally Posted by windows8use View Post
    Thank you. So should I delete the entries directly in regedit or delete it in ccleaner because ccleaner will not delete the whole entries?
    In either case you have to accept the risk, and possibly copy/paste registry key locations into google to learn more what these keys do, at least it will give you some confidence.
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  7. #7


    Posts : 2,130
    Windows 8.0 x64


    Quote Originally Posted by Addictive Gamer View Post
    Quote Originally Posted by windows8use View Post
    Thank you. So should I delete the entries directly in regedit or delete it in ccleaner because ccleaner will not delete the whole entries?
    In either case you have to accept the risk, and possibly copy/paste registry key locations into google to learn more what these keys do, at least it will give you some confidence.
    +1 CCleaner is safer. But you learn by doing. The main thing when you experiment is to leave yourself methods to bail yourself out of mistakes. We all make them. Just try to make sure you can recover from them if necessary.
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  8. #8


    Posts : 156
    Windows 8.1 Pro 64-bit, Windows 10 64-bit


    Hi,
    The registry entries that left is related to some apps uninstalled like classic shell etc
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  9. #9


    Trnava
    Posts : 683
    Win 8.1.1 Pro x64


    CCLeaner is safe, because it does not delete much, if you use more aggressive registry cleaner, it will clean more, but obviously, there is a better chance, that something will go wrong. I use WiseCare' registry cleaner for years (freeware), it is safe and creates backups. You can give it a try. But for the future, it is better to use an uninstaller, rather then a registry cleaner, even though there are risks involved as well.

    program that deletes all traces of uninstalled programs ?
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  10. #10


    Posts : 156
    Windows 8.1 Pro 64-bit, Windows 10 64-bit


    Thank you.
      My System SpecsSystem Spec

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