Installing the Latest Version of Adobe Reader 2.
Change the default app from Adobe to Edge and reverted back, no change Part 2: Solutions to fix Outlook PDF preview handler error 1. Checked for updates on both Windows and Adobe, both up to date
Gone into File options in Windows Explorer and done resets and also ticked the "Show preview handlers in preview pane" option. Under General, enable the option Enable PDF thumbnail previews in Windows Explorer. Uninstall Adobe DC, rebooted, re-installed with new download from site and rebooted, no change Open Adobe Reader, click Edit, Preferences. the "Enable PDF thumbnail previews in Win Explorer" option under Adobe was ticked, I unticked it, rebooted, ticked it and rebooted, no change This is what I've tried so far from a google search: You can set Adobe Reader as the default programme for viewing pdfs on Windows computers by following these steps: 1. I've tested other programs such as Word, Excel, Pictures, text files - they all work fine in preview. No updates were installed at this time that I recall (although checking my update history I see KB4483234 installed the day before I shut down) but now I've turned my PC on, no errors or alerts on opening and my preview won't work. It was working fine before the Xmas holidays and I shut my PC down. I'm having an issue on my Windows 10 Pro PC (version 1803, build 17134.472) with Adobe Acrobat Reader DC (version 2019.010.20064) and not being able to use panel preview in Windows Explorer.