File explorer issue

Development Getting Started & Setup
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Since I’ve been using UE, I have weird random file explorer issues. Here are the symptoms:

  1. Explorer freezes
  2. Explorer won’t open
  3. Files are not shown after copy and paste
  4. Can’t delete files
  5. Can’t move files
  6. Files won’t launch
  7. Computer won’t shut down

It randomly happens while I’m using UE, so I have no clue what causes the issue. I should restart my computer when it happens. It didn’t happen before I use UE.
Has anybody had the similar issues with me? If yes, have you found the solution?

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I’m running in to the same issues. The forum linked below was talking about the same issue UE4.

I’ve tried many of the work arounds like running as admin + running with Troubleshoot compatibility and Removing various Shell plugins/items (a comment on another similar thread talked of doing this), and restarting the computer which sometimes helps the issue before it returns.

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Hi, thanks for the reply.
So, it seems like, the issue is caused by Windows update. But I’m curious why only Unreal causes the issue. None of my apps (more than 500) doesn’t do that though.

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Hey I have the same issue with UE 5.2 and Windows 11 but the system is up to date. Only thing that I can possibly do is a non-required bios update which I am installing rn

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I am years late to this party… But if anyone encounters this, after 5 hours of wasting my time I accidently found the problem (in reality Unreal found the problem). The problem is not Unreal, it is OneDrive. By default Unreal projects are created under OneDrive/Documents and OneDrive then proceeds to hang Windows Explorer (either via its shell extension or its driver), Drink all your memory and use up your CPU.

Either move your project out or disable one drive sync and the issue is resolved.

(P.S as I said it was Unreal that alerted me to this. as it claimed i lacked memory to compile and i went and saw that OneDrive drank it all)