How do I replace files in the Windows System32 folder?

James Lewis September 16, 2012

I tried to replace a modified winver.exe into C:\Windows\System32 folder but it prompts that I don’t have permission.

What kind of permission do I need?

  1. Dylan Brendan
    September 17, 2012 at 10:56 pm

    Just run a administrator

  2. James Lewis
    September 17, 2012 at 9:06 am

    Thanks guys. Yes I'm just trying to change the version display, nothing much. very2 appreciate those answers you all gave. Thanks again

  3. Saurav Azad
    September 16, 2012 at 6:38 pm

    you need admin rights to alter files in system32 folder

  4. Dalsan
    September 16, 2012 at 4:43 pm

    You can also Take Ownership in Properties settings for the Security settings. Just give the ownership back after making the changes. I do agree with the rest as replacing system files can render your operating system unstable or unusable if you do not know exactly what you are doing and why. From the name of the file it sounds like you are trying to modify the displayed Windows version or pictures, but if you modify the file improperly, you will either BSOD or the changes will revert backto the original if you don't have the proper batch script. i would use other methods like shell 32 before trying to modify the winver file.

  5. Matt Cruz
    September 16, 2012 at 3:51 pm

    This is kind of an open ended question, as I really recommend not messing around with that.

    Are you trying to change the registered owner? That's a good reason to have to modify the winver.exe, but I think this is a better way to do it:

  6. Erlis D.
    September 16, 2012 at 2:55 pm

    Even logged in as an administrator, you can't replace some windows files! (Like SAM file and many more..)
    Sometimes, the better way is to log in with a linux os, and after finding the location of the file, replace them with the one you want!
    Of course, this is not recommended for beginners, since you might destroy your computer!
    I don't even understand why you want to replace windows system files...
    If there is any bug, try to fix it with windows repair tool!

  7. Usman Mubashir
    September 16, 2012 at 10:24 am

    you just need to log in as admin

  8. Bruce Epper
    September 16, 2012 at 6:37 am

    You need to be an administrator to replace system files (copy from an elevated command prompt or Windows Explorer window). But this also begs the question of why you are attempting to manually replace a system file. This is generally not a wise thing to do.

    • ahmed Fouad khalil
      September 16, 2012 at 6:53 am

      I do not recommend that too, if you do not know what you make it can crash the system

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