I think I feel your pain.. I just signed up for After Effects, and have been dealing with installation problems for 4 hours.. I've never had any issues with my PC while using other software. Now all the sudden in the middle of downloading Creative Cloud app, adobe tells me several .dll files are missing... It has caused a storm of problems, every app that opens, adobe has popped an system error stating that X .dll file is missing, can't close the window as it constantly comes back, can't shut down Pc cause i can't open the start menu with out it happening.. can't sign into the pc with out it happening... I finally uninstalled Creative Cloud App, and the errors are less frequent, but are still happening.. Ive done everything i can do to fix this, ive done windows updates, sfc /scannow, manually installed .dll files.. nothing fixes it.. every error is a Adobe product name - System Error. This is extremely frustrating as I was highly motivated to use After Effects.
Hope your quarantine is going better than mine lol.