Old version of Acrobat 8.1

[Guest]

I switched from windows 7 to a new computer with windows 10 Acrobat 8.1 transfered but it will not open says it not responding. any help to get it back and continue to use the 489.00dollars I spent would be greatly appriciated.

[Nancy OShea · Accepted solution]

The old activation servers were taken offline and I don't know if Acrobat 8 will run on Windows 10.   

1. Uninstall your old Acrobat and run the Adobe Cleaner Tools to wipe off residual files from your system. 
2. Turn on hidden files in Windows File Explorer. 
3. Delete the old Adobe PCD folder.
4. Restart your computer.
5. Next, obtain an activation free installer and serial number below.  You will need your old serial number to obtain the replacement.
   https://helpx.adobe.com/creative-suite/kb/activation-fails-cs3-acrobat-8.html
6. Install replacement software.  When prompted, give it the new serial number.
7. Click on NEVER REGISTER.
8. Restart computer.

Good luck!

[Nancy OShea]

Here are some more links.

Adobe Cleaner Tool

https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html

Your Adobe Account (serial numbers)

https://account.adobe.com