I'm trying to get rid of my Dual Boot of W7 & W7 . I had Windows 7 and Ubuntu Dual Boot but after I got rid of Ubuntu I reinstalled Windows and now I have two Windows 7 Dual booting on one of the two partitions of my HDD. On average I only have 5 - 10 GB of space on the partition containing my OS's. I would like to get rid of only one so I can free up space. Also currently when I try to use my computer especially when I first boot up and arrive at my desktop in order to access anything such as the browser my mouse freezes and then after about 10 seconds it unfreezes and usually happens quite often.