Problems with 15.006.30503

I have Adobe Acrobat DC 2015  (not the cloud). Two days ago I downloaded  update 15.006.30503.

Since then I can't save any existing forms that I have updated information within them. I receive the error message, "The file maybe read only, or another user may have it opened. Please save the document with a different name or folder." I tried this and nothing worked. I have tried using "save as" and it comes up with the same message. No one else has my form. It is only on my computer. When saving other forms that I have updated, I receive this message: "The document could not be saved. This file cannot be found." And yet I have it opened and am trying to save the changes I have made. I have tried the repair feature in Acrobat. It doesn't help. There are no security settings on the documents. Another form that I created needed to be reduced in size. When attempting to do this, this message came up: "Please check if you have permission to write to this location and have sufficient disk space." I was saving it to my desktop and have a 1TB hard drive.  Prior to installing this update, I had no problems. Is there any way to remove the update? Any help would be appreciated.