Win7 boot blue screen error c000021a how to deal with?

In the process of using the computer, I am most afraid of blue screen and black screen failure. Recently, some users directly jumped out of the blue screen interface when booting. The error code indicates STOP: c000021a. Restarting again is the same. He uses Win7 system. How to deal with this problem?

1, first of all you can use PE starts, and then check the hard drive's partition table for errors or modified using Disk Utility, and then try to fix your boot hard disk MBR. Then restart your computer to see if the problem is still there.

2, you can try to install the system, most unknown hard error is reported, reinstall the system can be solved (recommended: Win7 system download).

3, check the hard drive data cable or replace the hard drive test, if the problem remains after reinstalling the system, then it is very likely that the problem is on the hardware.

4, there is a more common situation, is to reinstall the system but can solve the problem, but it will not be long before the problem will appear, like this situation is mostly hard disk bad cluster, you can try to use the hard disk The repair software first fixes the hard disk test, if it is still not recommended to replace the hard disk.

The above is Win7 boot blue screen error STOP: c000021a solution, generally through PE boot repair can solve the problem, choose the reinstall system friends need to pay attention to whether the C drive leaves important data, so as not to cause unnecessary Loss.