Invalid Drive: F\ error HELP

ok i cleared of my drive and when i launched Epic games launcher it says "Invalid Drive: F\ " tried doing everything i could think of please help!

Hello,

For issues with the Epic Games Launcher, please visit http://help.epicgames.com/

There you’ll find various troubleshooting articles, as well as an Email Us button on the side of the page that you can use to get in touch with one of our support staff.

Have a great day