"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".

[Nurrohmat Miftahussurur]

Same problem here. 😞

[lisar19299332]

Try updating your Adobe creative cloud and apps, and trying a Windows update. It's working fine for me now!

[lisar19299332]

Well, for some reason it's fixed now. Not sure if it was a Windows update or Creative Cloud update but the preview pane is showing PDFs fine now. Thanks!

[lisar19299332]

Never mind I jynxed it! The issue is still happening!

[Zy0n]

same problem

[lisar19299332]

Try updating your Adobe creative cloud and apps, and trying a Windows update. It's working fine for me now!

[Zy0n]

To me it bugged out after i did the last acrobat update instead. Atm there is no update to be done....

[lisar19299332]

Either an Adobe update fixed it or a Windows update did. Now I can view PDFs in the preview pane again without any issues. 

[peterrATgb]

Hi, I'm having this same issue. Can you post your window version and the acrobat version you are running?

[lisar19299332]

Well, unfortunately it's back to showing an Adobe Acrobat "An Internal Error Occured" pop-up. Which is so frustrating. I checked both Creative Cloud and Windows for updates and I'm up-to-date. No one from Adobe Support has chimed in, so I guess I just have to wait until another update fixes it 😞 Keep trying!

[peterrATgb]

Thanks for the reply!

I created another post about this issue so maybe that will help motivate their support team...

https://community.adobe.com/t5/acrobat-discussions/acrobat-an-internal-error-occurred-when-using-win...

[Carl_Desmond]

Having similar issues in Windows 11

- This is NOT the "1 Correct answer"

[lisar19299332]

Agreed, I thought it was fixed but it's still happening. 😞

[GROUP DIGITAL MARKETING]

Same issue constantly! I have no idea where to send Adobe support my crash dumpfile as they don't even list the location on the help file! 

[RedFeathers]

I'm on Windows 10 and getting this too. I thought it could be a windows display setting that was disabled, but I can't find anything that would seem to be related to this error.

Has anyone else had this issue resolved with an update yet?

I see that an Adobe team member mentioned working on a fix for this issue on the 15th of Sept, but that's just over a month ago so I've left a comment on that thread for feedback.

I'm hesitant to try installing the 32-bit version as I've had issues with other software in 32-bit.

[Nico Houet]

Hi,

Same problem for me on window 10

[Dandy Dani]

same issue for me I cant do ANYTHING with pdfs without freezes, crashes, INTERNAL ERROR. I cant even attach more than 1 pdf to an outlook email without it freezing and crashing my email. I have uninstalled, reinstalled, contacted adobe, contacted IT department...spent all day trying to fix. please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[mattb256]

I am also having this issue. Ran an additional update for windows. Removed / re-installed acrobat. Still having this error.

[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.

[Sergii82]

thanks!!! you are the best!!!

[GROUP DIGITAL MARKETING]

@markelrayes

OMG! THANK YOU !! THIS WORKED!! I am not kidding this actually worked! 

thanks so much!!

[Carl_Desmond]

YOU SIR, ARE A SAINT!!!
All hail MarkelRayes!!!!!! 

[Zy0n]

FIXED!! thanks GG

[RedFeathers]

Hey there, It's letting me delete all but one AccountUnknown, any suggestions?