I had a BSOD yesterday , caused by ntfs.sys , the harddrives were checked by HD sentinel and are in excellent condition, I am using windows 10 pro , upgraded from win 8.1 pro on intel i5 3450 based pc . During first reboot, windows performed an auto disk check . When i booted into windows the following issues were faced : 1) Start button wasnt working 2) Realtek Lan adaptor was missing , i had to use usb wifi adapter to get online . 3) i could not open any pics on c drive, would get an error that the apps trial had expired . 4) System restore did not work , access to system volume was denied , asked to perform chkdsk /f , chkdsk /f reported no errors . After googling i tried this This did not complete successfully, there were some errors in red lines but it fixed the photo app issue Also removing the lan driver from device manager and letting it reinstall fixed the lan issue, my VMware lan adapters are still missing . The start menu button is still not working and system restore too, and dont what else could be broken which i haven't found out yet . Please let me know what can be done .