XP boot blue screen error code stop: c000021a unknown hard error how to fix

Some users download and install some software with virus, they will find their own computer blue screen and stop: c000021a unknown hard error, then how to solve this problem Can it be solved? Let Xiaobian tell you the solution to this problem now.

About caused stop: Part of the problem c000021a unknown hard error and solutions:

stop appearing 1. Installed: c000021a unknown hard error a few days before I formatted the assembly does not On the machine, I first ruled out the virus and software conflicts in the pure DOS grid. The hard disk track check was still fine and still could not be installed. Later, it was found that the installation CD was damaged and some of the installed files were incomplete. The problem of re-changing the new system disk was solved.

2. Unknown track error or unknown hardware error. This problem occurs first. First check if the bad track of the hard disk is a logical bad track or a physical bad track. The method is very simple. When the computer has just started, press “F8”, select “Command Prompt only” enter DOS mode (operating system must be Win95/98, if Win2000/XP please use DOS boot disk), execute “scandisk x: & rdquo; (X is the drive letter), Scandisk program will check the hard disk, the resulting logical bad sectors will pop up a dialog box, select "Fix it" to perform a primary repair of the logical bad sectors. If the scanning process is stagnant at a certain progress, then the hard disk has physical bad sectors.

For the hard disk that has been initially repaired and still has logical bad sectors, return to Windows after normal startup, and enter the hard disk with logical bad sectors in "My Computer", click the right mouse button. Select “Properties”→“Tools”→“Start Check" "Disk Checker" "Disk Scanner> Select “Complete> “Start”, start scanning and repairing the partition.

For a hard disk with physical bad sectors, the above method can't do anything, but there is no way.

Below I will introduce a method to repair the hard disk with "PartitionMagic" (:
By re-partitioning the hard disk, hiding the physical bad sectors Hard disk space, which is isolated. The specific method is:

First start the PM, select the “Check” command under the “Operations” menu to scan the hard disk directly, mark the bad cluster, and select “<quo;Operations” under the menu“ Advanced”→“bad sector retset finally divides the bad cluster into a separate partition, and then hides the partition by the “Hide partiton” command, and you are done.

Track damage appears stop: c000021a unknown hard error This problem usually occurs in most cases. Most people will dispose of the hard disk. But it is not absolutely impossible to repair, the principle is very simple, as long as 1 sector instead of 0 sector will do.

This time, please “DiskMan” to help us, it is a more commonly used hard disk tool. In pure DOS operation, select the disk to be modified (usually C drive) in the “Hard Disk” menu, and then go to “Tools” and “Rars” and “Rars” and “Rars”. The value of ” is changed from “0” to “1”, after confirming, save and exit. You can repartition your hard drive. If the above methods do not work after the problem, then you have to use the ultimate method —— low-level formatting to check the hardware installation is no problem, have not modified the parameters.

Two. STOP appears when the computer is turned on and off; c000021a unknown hard error

I found that my Windows XP can't be closed, and I can't restart it because my XP is disabled. If I get a serious error, it will restart automatically. ;, so only blue screen appears every time, prompting that "stop c000021a unknown hard error unknown hard error & rdquo;, preliminary understanding, is not aware of the hardware error, on Microsoft to check C000021A, no real solution and explanation, are Vaguely passed, and then use google+baidu to check and found that many netizens have had this problem, but most of the respondents said that the hard disk has an unknown track error, or an unknown hardware error, the latter can also be convinced, the former I feel that the understanding is wrong, but it is also a possibility. Reboot the computer a few times, even worse, the system can not enter, the same error, replaced by safe mode, you can go in. However, there are some people on the Internet who can't even enter the security model. Previous123Next page Total 3 pages