Why do computers often scan hard drives when they are turned on?

Regardless of whether it is a normal shutdown or an abnormal shutdown, the disk will be automatically scanned when the system boots. After entering the system, use the built-in disk error checking tool to check that there are no bad sectors on the disk.

Analysis: In Windows XP and Windows 2000 operating systems, the system integrates a disk scanner. If the machine shuts down gracefully, the system automatically runs the disk scanning program.

In this fault, we detected that there was nothing wrong with the disk, so we could disable the disk scanner from running. In Windows XP and Windows 2000 operating systems, the name of the disk scanner is CHKDSK. From the "Run" option of the Start menu, we can enter CMD to enter the prompt of Windows XP and run chkntfs?

Take a look at the parameters of the command. The main parameters are: x:

Exclude drives that were not checked at boot and are invalid at the last time this command was executed.

C: Schedule to check the drive at boot and run the chkdsk program if there is a problem with the drive.

d: Restore the computer to its default state, check all drives when the system boots If we want to cancel the disk scanner, we are going to enter chkdsk d: x, here we must note that to cancel the disk scan of all partitions, this must be done for all partitions.

For this kind of phenomenon, it is better to let the OS do a disk detection. In this way, the NTFS partition can effectively protect the data in the partition. Since it is caused by an abnormal shutdown, the user should be informed of the correct way to use the computer.

I think that 50% is a hardware problem, 50% is a software problem, I have encountered this situation, and then reinstalled the system, the old scan one sector before reinstallation, and the old scan another sector after reinstallation, which means that it is a software problem.

1. Try changing the data cable and power plug.

2. If it doesn't work, check the IDE interface, if it turns out to be IDE0, change to IDE1 and try it.

3. Check the power load.

As described, the reasons are as follows, the computer was caused by the last abnormal shutdown, the hard disk has a bad sector or bad area, and the computer checked it during the self-test.

The first reason is the main reason, and the scan is complete.

What happens when my computer turns on with a disk scan failure? Many users have encountered a crash when using the computer, and pressed any key without response, and finally can only choose to force the shutdown. But the next time you turn on the computer, the system will have a disk scan, what's going on?

Today, I will talk to you about the causes of disk scanning failures when the computer is turned on and how to solve them.

1. Cause analysis:

1. When encountering abnormal shutdown situations such as crash and power failure, the system will record the abnormal shutdown information in the windows log;

2. The next time you start the computer, the startup program will read these log files;

3. These records of abnormal shutdown will automatically start the disk scanning program to scan the disk;

4. When the disk has physical bad sectors, or the disk fragments are excessive, or the disk is partitioned.

If there are incompatibilities, it may be the cause of the disk being used for too long or physical bad sectors.

Second, the solution:

1. Right-click on the "My Computer" icon and select "Explorer", right-click on the disk letter of the open window, and select the "Properties" command;

2. In the opening Properties window, switch to the "Tools" tab and click the "Start Check" button in the "Troubleshooting" column;

3. In the next window, check "Automatically repair the file system."

Error" and "Scanned and tried to recover bad sectors" checkboxes.

4. Click the "Start" button to scan and repair the system disk, and scan and repair the system disk when it needs to be restarted.

6. Use the disk defragmenter to thoroughly sort out the disk fragments.

7. If the fault cannot be eliminated through the above steps, diskgen can be used to detect whether there are physical bad sectors on the disk, and if so, the bad sectors can be shielded in this software.