Click the "start" button, and type "cmd" in the search box.
In the new Command windows, type "System Root \ System32 \ Drwtsn32.exe--I" to register Dr. Watson as the default system debugger, and then press Enter.
Type "System Root \ System32 \ Drwtsn32.exe-", and then choose the options below:
Append to Existing log file
Create crash dump
visual Notification
Restart the computer, and press F8 at the Indicated time.
Choose "Last Known Good Configuration" with the arrow keys, and then press Enter.
Highlight an operating system With the arrow keys, and then press Enter.
Restart the computer again to log in normal mode, and upgrade the Windows again.