Crash when save as.
Consistent crashes on Adobe Reader DC on Windows 10, with the newest version installed. No crash report ever generated, instant process stop. Can be replicated when attempting to sign in or save as. Open recent document shows saved file and location within adobe, cannot be located when selected to open or found within computer files.
Sorry to hear about the issue you are facing.
1) Have you applied a latest patch of Win10-2004 after which you are facing this issue ?
2) Could you confirm me the current version of Acrobat Reader DC that you have ?
3) Could you please do Help → Repair Installation and see if it fixes the issue ?
4) Could you please share a Screen Recording video of the issue that you face at firstname.lastname@example.org ?