cis on 2 different pcs

i got the latest update on 2 pc’s. on one pc it works great (win8.1) but i had newer version already installed. on other pc, got the update, however when i go to web and try to save a image, dragon browser quits working. the cis i had installed in this pc was the last cis7.never put cis8 into this version. uninstall then reinstall? i have many files and links saved and do not want to loose everything.

thanks :-\