Uninstall Windows 8 using the Boot Option in msconfig.
1. Type msconfig in start search and hit Enter.
2. System Configuration box will open up. Navigate to the Boot Tab and select Windows Developer Preview. Next click on Delete.
3. Click on Apply button and then finally click on OK.
4. Now, you just have to format the partition where you had installed Windows 8 Developer Preview and then you can get your disk space back. To do so, Open Computer folder and right-click the drive on which it has been installed. Select Format.
1. Type msconfig in start search and hit Enter.
2. System Configuration box will open up. Navigate to the Boot Tab and select Windows Developer Preview. Next click on Delete.
3. Click on Apply button and then finally click on OK.
4. Now, you just have to format the partition where you had installed Windows 8 Developer Preview and then you can get your disk space back. To do so, Open Computer folder and right-click the drive on which it has been installed. Select Format.
