What exact version of Acrobat are you using?
Please check if there are updates available for the version of Acrobat which you are using. (Help -> Check for updates)
I am using Acrobat Pro XI version 11.0.13. It is up to date. That was the first thing I tried. I also clean up the hard drive and internet explorer. My hard drive is defragged automatically.
Try Repairing Acrobat. (Help -> Repair Installation).
I have version 11.0.15 and it started freezing when I attempt to edit a pdf file. It just recently started this.
Could you please tell me the OS running on your system?
Does this happen with a particular pdf file or all pdf files?
Try editing other pdf files and check what happens.
Do you get any error message?
Also try repairing by navigating to Help>repair installation.
It happens with all pdf files and just freezes without any error codes.
I'm using Windows 8 and XP. I have attempted using it on different