"An Internal Error Occured" when clicking on a PDF and Windows Explorer preview pane is showing.

[lisar19299332]

Hi there,

Running Windows 11, up-to-date system and up-to-date Creative Cloud and Adobe Acrobat DC. I have my preview pane visible when going through my files, and sometime in the last 2 weeks PDFs no longer show up in the preview pane. Instead, windows explorer freezes for a few seconds and then shows an Adobe Acrobat "An Internal Error Occured" pop-up. I tried clearing out my temporary files, and tried creating a "2022" folder in C:\Users\(user)\AppData\Local\Adobe\Acrobat\ which was suggested in this thread. Neither worked. All other file types (.jpg, .doc, etc.) show up in the preview pane just fine. Any suggestions?

 

[markelrayes · Accepted solution]

I FOUND A SOLUTION.

I had to go C:\Users\[me]\AppData\Local and right click the Adobe folder, click properties and go to security tab. I had a bunch of left-over "Account Unknown" listed besides my three main ones (System, [me], Admin). I deleted all the account unknowns.

That fixed it for me.

[Eric Brandley · Accepted solution]

This worked, for me! (thank god, what a pain in the a**)
I couldn't find the "AppData" folder, I ended up finding it by clicking "view", then "show" and then toggling on "hidden files".

[lisar19299332]

Yes, the whole point is we used to be able to click on a PDF and quickly preview it without opening it, and now we can't and it's annoying. Deselecting the Preview Pane is not a solution it just hides the issue 🙂

[smyleah]

This worked for me!

[nanny_6434]

This worked for me...I right clicked on the .pdf file and set the default 'open with' to Adobe Acrobat Reader (from microsoft Edge) and I can now see the preview and that error no longer appears.