accidentally renamed file extensions in system32 folder, wont startup

  1. Posts : 2
    Windows 10 Home
       23 Dec 2016 #1

    accidentally renamed file extensions in system32 folder, wont startup

    hello everyone, i ran a command that was suppose to rename every file extension in a folder to the jpg file, but forgot that the default folder was system32 in cmd. I even ran CMD as admin, so it renamed quite a few. After restarting my computer obviously failed to start up. I tried windows repair but it couldnt fix it.

    Is there any way on getting access to the system32 folder on the windows 10 iso? so i can copy those files back?

    So example of the issue would be a file named dog.dll is now dog.jpg.

    Thanks in advance!
      My ComputerSystem Spec

  2.    24 Dec 2016 #2

    Hi, if you know exactly what you've done, you can reverse that by not booting from Windows, but by booting using either
    a. a Win 10 install medium, and navigating to a command prompt and making the changes
    b. Getting e.g. Kyhi's boot DVD/drive from the Software and Apps section here, booting from that, and in a familiar Windows environment make the changes you need.

    Alternatively you may be able to use System Restore if you have usable restore points, and running System Restore by booting from a Win 10 install medium and then starting System Restore.

    Note: we strongly and repeatedly recommend the use of disk imaging (e.g. Macrium Reflect (free) which lets you restore your PC to a previously working state without tech. help.
      My ComputerSystem Spec

  3. Posts : 2
    Windows 10 Home
    Thread Starter
       24 Dec 2016 #3

    Does option B or something similar offer the following, which i feel would be easiest way to fix this:

    1. have access to what the original system32 folder would look like upon a fresh install, i only need the files in that folder, not the sub-folders or any contents in that. That way, i can just do a simple drag and drop style (copy and paste) to my drive and it should boot okay.
      My ComputerSystem Spec

  4.    24 Dec 2016 #4

    Hi, from what you posted it sounded as if you needed to rename files. If you are able to do that, and the system boots, fine, hopefully.

    If system restore works (launched from a bootable win 10 install medium) that would be ideal.
      My ComputerSystem Spec


Related Threads
Hello all, I know this has been discussed a few times before, in and also in, but I promise this is different from those times. I've done a search and looked through quite a few different solutions, but I just...
Hello, my Documents folder has somehow become Videos (in This PC). I don't recall making a change to it's name and in fact can't find any way of changing it. I did read a similar post after googling the problem, but the responses involved registry...
Hello, This has been a long standing problem that I have not been able to find an answer for on my own. I am unsure of what caused this to happen initially, but when I was using Windows 7 the system32 folder (C:\WINDOWS\system32) would open...
Dedicated Microsoft Edge extensions page revealed early as new Redstone build nears 52919 Update: Microsoft has pulled the web page. Check it out here:
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 02:55.
Find Us