I installed Windows 10 then downloaded the GTX 970 driver for Windows 10 from the NVIDIA site. Seemed okay for about 30 seconds then my PC froze and bluescreened with ntfs.sys error. I did a chkdsk /b and it corrupted some bitmap space that wasn't marked as free, no file corrections or bad sectors though. Once I booted into windows the desktop shows up okay but there is no mouse cursor and pressing ctrl+alt+delete just makes the screen go completely black. Pressing ESC brings it back to the desktop but it still won't show a cursor or respond to the keyboard input. I re-installed Windows and did Windows Update, it downloaded the NVIDIA update as well as a ton of others, took about 30 minutes to download then I got a popup saying an update failed to install. I rebooted my PC and just goes to a black screen. I went into safe mode and disabled the video driver and it boots up fine now, just installing all of the updates. I have just downloaded + installed Windows 10 last night so am only running build 10130, enabled the fast ring thing in Windows Update preferences so hopefully installing all of the updates will upgrade this to a newer build that fixes the issue but just wondering if anyone else knows how to fix it if updating doesn't resolve the issue.