My C: drive keeps losing space after running security essential scan.  On a daily basis after computer usage, I've been diligently performing C: drive clean disk to delete and recover file space.  However, I keep loosing roughly 250 MB's per day after logging off.  I've even performed a control panel system protection removal of system restore disk space usage--that recovers minimal to no space.  Even so, I've been loosing on average (as stated) the roughly 250 MB's, per day.  I hope I articulated this well in asking for help, please?