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How to Delete System 32

Updated April 17, 2017

System32 is a system folder used in Windows operating systems that contains necessary files in order for your computer to function. The folder itself is owned by TrustedInstaller, which is a process on Windows operating systems that automatically downloads updates. Because of this, some users experience slow processing speeds and often relate them directly to the System32 folder. In order to enhance the speed of your computer, you may delete System32 manually.

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  1. Click "Start" on the menu bar located at the bottom of your screen.

  2. Click "Run" to open a dialogue box.

  3. Enter "cmd" into the box and click "OK" to open a command prompt. A new window will appear.

  4. Take ownership of System32 files by entering the following the command:

  5. takeown /f C:\Windows\System32\en-US\

  6. Replace with the actual name of each individual file. For instance, if you choose to take ownership of the file aaclient.dll.mui, you would enter the command "takeown /f C:\Windows\System32\en-US\ aaclient.dll.mui". Repeat this command for each individual file you want to delete. This process does not delete the file -- it only gives you ownership of the file.

  7. Run the Access Control List command for each file over which you take control. This will allow you to delete it by entering the following command:

  8. cacls C:\Windows\System32\en-US\ /G :F

  9. Replace with the actual name of the each individual file and replace with the account name that you use on your computer. For instance, if you want to obtain control of the file aaclient.dll.mui and your account name is ComputerBoy, you would enter the command "cacls C:\Windows\System32\en-US\aaclient.ddl.mui /G ComputerBoy:F." Repeat this command for each individual file you want to delete.

  10. Close the command prompt.

  11. Open Windows Explorer.

  12. Click on the folder titled "C:" to reveal subfolders.

  13. Click on the folder titled "Windows" to reveal more subfolders.

  14. Scroll down and click on the folder titled "System32" to reveal the system subfolders.

  15. Open the folder titled "en-US." This will reveal all of the files you want to delete.

  16. Right-click on each file you choose to delete, one by one and select "Delete" to delete the file from your hard drive.

  17. Restart your computer.

  18. Warning

    Deleting system files is dangerous. System files are needed in order for your computer to function properly. Deleting the wrong files will crash your computer and necessitate a complete format of your hard disk, which means you would lose all of your stored data.

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About the Author

Rob Kemmett

Rob Kemmett began writing professionally in 2010 and specializes in writing about food and hospitality. Kemmett has worked in various fine-dining restaurants throughout his career and holds an Associate of Applied Science in Le Cordon Bleu culinary arts from the Cooking and Hospitality Institute of Chicago.

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