Therefore, it's necessary to check free space of drive C in Windows 7 or Windows 8.1 Explorer. If it indeed does not have much free space left, enlarge it.
If drive C does not have enough free space for upgrade, you may receive blue screen. Many factors could cause this issue, and next we picked out some typical cases.Ĭase 1: Windows 10 BSOD Without Error Code: C Drive Might Run in Low Disk Space Many users reported that they were blocked by a blue screen during the process of upgrading Windows 7 or Windows 8.1 to Windows 10 and their PC was set to the original state. Quickly Fix: Windows 10 Blue Screen of Death after Upgrade Then, let's start fixing blue screen issue of Windows 10. In addition, it is also the first step if you have to reinstall Windows.