James Mason :
Control Panel > Add or Remove Programs/Programs and Features > GTAV > Uninstall
Man Thanks you So freaking much! you helped me last night as well! Thanks to your help I managed to move my Gta into a different folder without downloading it again, and all I did was copy ad paste all of the file into the new folder, then I uninstalled the others and the opened the gtav launcher on my other folder and it realised all the files were there and now it works! But it doesn't show Gta V in my programs and features anymore, even though I still have Gta v, should I be worried about that?