Win7 accidentally deleted sam file caused the system to not work properly.

Win7 system mistakenly delete sam files don't worry, here is the easiest way to help you solve, just use the U disk boot tool will fix the system, come see it below The specific steps of the process.

The specific method is as follows:

1, first select U disk boot in the startup item, start item setting reference method;

2, select 1 in the U disk boot interface Can enter the PE system;

3. After entering the PE, open the same as the normal Win7 system and open a copy of the SAM file from C:\\Windows\\System32\\config\\RegBack;

4, then copy the SAM file to the C:\\Windows\\System32\\config folder and restart the computer.

The above is the graphic tutorial that Win7 accidentally deletes the sam file and the system can not run normally. It solves the problem through the U disk startup interface, hoping to help everyone. More exciting tutorials please pay attention to this!