Whentrying to open Excel, instances of Adobe Acrobat Readerr are appearing in task manager, but not opening Nor does Adobe Acrobat Reader open. We have, in our company, this issue on more than 100pc's, the only ones not affected are the Windows 11 test-pc's. NewHere , Feb 13, 2020. Hi everyone! I'm unable to open any PDF using Adobe Reader DC since the last update (yesterday was OK, but since this afternoon, it's not working Samehere using Adobe Acrobat for years. Currently running Acrobat Pro 2020 (full version). No issues here. Anyway, are you sure you're using Acrobat Reader DC, as "Acrobat Reader" has been discontinued for years. So much so that now Acrobat Reader DC, is now simply called "Acrobat Reader". Download from here - Adobe - AdobeAcrobat DC Pro will not work / open for more than a short time, runs in background. Ask Question Asked 1 year, 4 Microsoft Corporation OS Name: Microsoft Windows 10 OS Version: 10.0.22000 Page File Space: 39100712 KB Processor: Intel64 Family 6 Model 142 Stepping 10 GenuineIntel ~1800 Mhz Session Detail: Boot Type: Acrobatand Reader, on Microsoft® Windows®, allow you to configure to open PDFs in Protected View mode, which prevents XFA-based PDF forms and policy-protected documents from opening. Ensure that the Protected View mode in your Acrobat or Reader is disabled. For more information, see Protected View (Windows only). Sometimein early 2019, Adobe released an Adobe Acrobat Reader DC update that disrupts some users of the CentreStack Windows Client. This article is applicable to you if you are getting one of the rightclick the exe > click open as administrator. Hi kglad, thank you for the answer. But this solution you provided doesnt work. Let me give you more details. When I turn on the computer for the first time in the day, Acrobat Pro DC enters fine and i can open PDFs. But once is closed, it does not launch again. 1 Go to your local Windows user folder in Windows Explorer. 2) Enable hidden items under the 'View' menu. 3) Open the now-visible ' AppData ' folder (it should still be slightly greyed out). 4) Delete the following folders (you'll have to open each one individually, then return to the 'AppData' folder): Windows10 1809 (Build 17763.253) Adobe Acrobat 2017. Adobe Acrobat is up to date (no updates available). Unfortunately, extracting the file and then opening it is no solution. That works, of course. I closed and re-opened Windows explorer and found I could open any one of the pdf files, but on the second try to open a pdf file the Nowthis the easiest way, try this fix to run Adobe Acrobat Reader smoothly. For Windows 11/10: Click the File Explorer or press Windows +E buttons to open File Explorer. Click on View and find gCVq.