Re-installing MCC

Hello guys
So my problem is that I have a problem in MCC Reach Forge, I can’t rotate the object or I can but its very low sensitivity. It hasnt always been like that just occured recently. So I think that if I re-install Halo maybe this issue will go away. But I am afraid I will lose my Forge maps which I am interested in? How do I solve this out? I am on pc so I can’t upload them to my file share…