Windows 10: Cleaning up massive C:\Windows\Installer 35GB

Discus and support Cleaning up massive C:\Windows\Installer 35GB in Windows 10 Software and Apps to solve the problem; I am using a 500gb SSD which is full now so I looked into it with TreeSize to see whats taking up so much space, and I found the 66GB windows folder,... Discussion in 'Windows 10 Software and Apps' started by Michael_446, Jun 6, 2025 at 5:32 PM.

  1. Cleaning up massive C:\Windows\Installer 35GB


    I am using a 500gb SSD which is full now so I looked into it with TreeSize to see whats taking up so much space, and I found the 66GB windows folder, of which 35GB is a subfolder called Installer, full with msi files. I have already looked up suggestions and partly solutions, however, the official methods did not do anything and I am not trusting third party apps like PatchCleaner to detect orphaned msi files. I cannot believe there is no official way of getting rid of this massive and probably largely dead weight, so please provide some viable solutions, thank you!

    :)
     
    Michael_446, Jun 6, 2025 at 5:32 PM
    #1

  2. Clean Install Workaround for Vista

    You may remember this news story on techPowerUp! a couple of days ago relating to the lack of clean installs when using the Upgrade Editions of Vista, which required an old OS to be installed. However, Paul Thurrott has managed to find a workaround for this issue, which ironically lets users do a clean install Vista without any previous version of Windows, albeit a little tedious. Here are the steps:
    • Boot from the Windows Vista Upgrade DVD as normal
    • When prompted for a product code, leave this blank
    • Select the version of Vista you have purchased and let Vista install
    • When you boot to your desktop for the first time, run the Vista setup from Windows
    • This time enter your product key
    • When asked whether you want to do an Upgrade of Custom install, select custom and choose a clean install
    • Windows will now install for a second time and you should be able to activate it
    Remember, these steps are only advised for use in order to achieve a clean install of Vista, it is only legal to use the upgrade editions if you have previously purchased the appropriate version of Windows.

    Source: DailyTech
     
  3. windows xp installation and dual core am

    could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx
     
    exodusprime1337, Jun 6, 2025 at 5:43 PM
    #3
  4. Anusha Win User

    Cleaning up massive C:\Windows\Installer 35GB

    C windows installer folder - Delete?

    He can do symbolic link redirection and move the files in it to a different location. *Wink Cleaning up massive C:\Windows\Installer 35GB ;)
    Better try it out in a virtual of first. Just a suggestion.

    Like:
    First move everything in c:\windows\installer to d:\installercache
    Then delete c:\windows\installer folder
    Then type this in command mode as admin
    mklink /d c:\windows\installer d:\installercache

    Removing those installer files is a bad idea. it might prevent you from updating or uninstalling apps.
     
Thema:

Cleaning up massive C:\Windows\Installer 35GB

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