

I've applied the latest OS updates and restarted my computer. There was an error opening this document. If I use acroviewR19, I sometimes see this error message first before getting the one above:

Regardless of what I do, I get the same error message as on the other post: MiKTeX Console > Settings > General tab > "Always install missing packages on-the-fly"). While the program is still able to view and modify PDF documents, users can now take full advantage of cloud-based storage. Here its important that you reference the correct update file which in this case is AcroRdrDCUpd2100720091.msp. The first is named install.cmd and the second is called uninstall.cmd.

This opens Adobe Acrobat Reader DC (if it is not already open) while TeXnicCenter hangs for about 20 seconds before showing the same error message. Before the OS upgrade, I was successfully using acroviewR19 as the server.) (If I open AcroRd32.exe, the version at the top is 19.021.20061. Checking the location of AcroRd32.exe (it is still in the same folder).This may be due to a recent upgrade to Windows 10, or because the Adobe Reader version is wrong. I have used the solution(s) listed on that linked question many times in the past. How to configure TeXnicCenter to work with Adobe Reader DC?
