I am trying hard to install a software in windows pc but it always fail with different error messages, first the error was “already exists” “fatal” “incomplete installation” than I thought this software already installed in my machine, I uninstall the software and also deleted software folder from c drive; but the problem not fix. Finally I went to regedit to find and delete all the previous file of software, this trick fix my problem, hope also work for you (do it on your risk),
1. Open the “run” type “regedit”
2. Press “Ctrl+F” to find insert software name for example “corel” hit “enter” now delete selected file,
3. Press “F3” and delete selected file, do this until you not get “Finished searching”
4. After this restart your pc, and try to install software, hope this will fix your problem.