How to Delete RarExt.dll from My Computer?

December 17, 2025 5 answers
Asked by TechyTurtle42
I recently got a new computer and I'm trying to clean up my old computer's SSD to transfer it over. I've deleted most of the files, but I can't seem to remove RarExt.dll. It appears to be associated with WinRAR and I keep getting a message saying that it's open in Windows Explorer. I'm not very tech-savvy and I'm not sure what my options are. Any advice would be greatly appreciated! Thanks!

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LeftyLingo50
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DLLDetective22
That DLL file is tied to WinRAR and handles the right-click options. If you want to get rid of it, youโ€™ll need to uninstall WinRAR. Alternatively, you could try booting into Safe Mode and use Command Prompt to delete it directly.
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WiseOldOwl77
It's generally not the best idea to just delete files without knowing their purpose. Instead of manually deleting, consider using a program like Bulk Crap Uninstaller to safely remove software, but just ensure itโ€™s okay to remove RarExt.dll first. You could also use WizTree to see whatโ€™s taking up your space more effectively.
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HelpfulHarry89
You might want to try booting into safe mode and removing the file from there. That usually helps with locked files.

TechyTurtle42: Okay, thanks for the tip!

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CuriousCoder99
Short answer: If you want RarExt.dll gone, just uninstall WinRAR. The long answer is that this file connects to the right-click 'Open with WinRAR' option, so it's in use as long as WinRAR is.
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