Explorer.EXE This file does not have an app associated with it for performing this action.

**EDIT - Update ** - Explorer made a liar of me. It came back just after I posted the below

This issue began for me 2 days ago. I had dozens of the same pop-ups overnight. I did a few things this morning, and the issue has not recurred today since. Here's what I did:

The 2 processed described here:

https://support.microsoft.com/en-us/windows/using-system-file-checker-in-windows-365e0031-36b1-6031-f804-8fd86e0ef4ca

And the regedit (on HKEY_...lnkfile) in #5 described here:

https://www.makeuseof.com/this-file-doesnt-have-app-associated-windows/

Good luck! I hope it works for you!

It's an interesting theory, and others in this thread have mentioned Adobe products, but I experience this on systems which have never seen an Adobe product installed, and I used AutoRuns (excellent idea, thank you) and on at least one of my systems where I see this problem, there is nothing out-of-date or unusual about any of the Explorer AutoRuns items. So, I doubt that the root cause is specifically Adobe, although possibly there's something that Adobe software does - and other software does to - that triggers a bug in Explorer/OneDrive/Windows/Microsoft...

This exact same problem for me has been getting much worse over last couple of days, having started a week ago

I have 3 x OneDrive for Business accounts and 1 x OneDrive personal accounts all synching and I'm reluctant to go through the hassle of uninstalling OD and resynching them all. And would that even fix the problem ?

Please Microsoft, can we have some attention and advice/action on fixing this

This problem just started with me today.

But I only have one Microsoft Personal 365 account with OneDrive sync turned on for my laptop. I don't have any business accounts logged in.

Any solutions?

Funny enough, I've had this issue since 2021, just a few months after I got this laptop and had the office package installed. As far as I know, no other coworkers, which are all connected to the same One Driver server, have this issue. It maybe pops up once or twice a day at most, often times when it happens, three or four windows with this error show up.

From what I remember, it's always given multiple errors, usually all within a few seconds of each other. It sounds like it's running a scan or check and getting this error on something but I feel like the amount of error windows that I see would have increased over time, which it hasn't..

Hope this helps some!