We need a little more information. But one thing is for sure: You should never need to uninstall/reinstall the program. BIAB runs in a "world of its own" since it does not register with Windows.

Is it only BIAB?
Are other programs affected?
Which operating system?
Which harddrive?

Maybe more questions arise after the answers.


Desktop; i7-2600k, 8 GB mem., Win 10 Pro, BIAB 2017; RB 2017 - latest build
Laptop: i5-2410M, 4 GB mem, Win 10 Pro, BIAB 2017; RB 2017 - latest build