Adobe Acrobat DC Reader
I have been getting tons of error messages when opening pdf files.
I finally uninstalled this program and my error messages disappeared. I don't care about manipulating pdf files, I just want to be able to read them and print them. I still wonder why I experienced all of these problems before I uninstalled this program. I read a lot of comments online and I am not the only one who experienced this problem.
I also just purchased System Mechanic and I think that really helped clean up my registry and fragmented files.