It is recommended to discharge the BIOS battery first to restore the factory default values, and then it is recommended to unplug the graphics card and memory to clean them and polish their gold fingers.
The following are various diagnostic methods when the operating system cannot be started.
First, we need to check whether the computer has started to start the operating system. If you encounter a crash, blue screen or automatic restart when starting the operating system, it means that the hard disk partition table and master boot record should be normal. You can rule out that the hard disk partition table is damaged, the hard disk master boot record is damaged, and the hard disk partition end mark is lost. Wait for the cause of the failure. Next, we can use the following methods for troubleshooting.
Step 1: First start the computer in safe mode and see if it can start. If it cannot start, it may be due to virus infection, system file loss, operating system damage, bad sectors on the hard disk, conflict with hardware devices, or hardware problems. , go to step 4; if safe mode can be started, it may be caused by the hardware driver being incompatible with the system, a problem with the operating system, or a virus infection.
Step 2: Then run the anti-virus software. If there is a virus, it may be caused by a virus. Restart the computer after anti-virus. If it is still not normal, you need to reinstall the operating system.
Step 3: If no virus is detected, you can use the "System Restore" function that comes with the operating system to restore the system. If the system is normal after restoration, the failure is caused by system damage. If the fault persists, it may be caused by the incompatibility of the device driver with the system; then delete the drivers for the sound card, graphics card, network card and other devices, and then install the drivers one by one. Restart the computer after each device is installed to check whether After finding out which device driver caused the fault, download the new version of the driver for the faulty device and then install it.
Step 4: If you cannot boot from safe mode, then use the installation CD to reinstall the operating system. If the operating system can be installed normally, go to step 7; if there is a failure when installing the operating system, such as a crash, blue screen, restart, etc. that prevents the system from being installed, it should be caused by hardware problems or poor hardware contact.
Step 5: Then clean the dust in the computer, clean the gold fingers of the memory, graphics card and other equipment, reinstall the memory and other equipment, and then reinstall the operating system. If the system can be installed normally, the fault is caused by poor contact.
Step 6: If you still cannot install the system, the failure may be caused by hardware problems. Then use the replacement method to check for hardware faults, and replace the hardware if found.
Step 7: If the operating system can be installed normally and the fault disappears after installation, the fault is caused by damaged system files.
Step 8: If the fault persists after installing the operating system, it may be caused by bad sectors on the hard disk or the device driver being incompatible with the system. Start the computer in safe mode. If it cannot start, the problem is caused by bad sectors on the hard disk. Then use NDD Disk Utility to repair bad sectors.
Step 9: If safe mode can be started, it is caused by the incompatibility of the device driver and the system. Then delete the sound card, graphics card, network card and other devices, and then install the drivers one by one. Install and start each one to check which device driver caused the failure. Once found, download the new driver for the faulty device and install it.
Please note: If you install drivers, patches, software and other things after restoring the system or reinstalling, be sure not to install the things that affected your accident, otherwise the restoration or reinstallation will be in vain.
2) Whether there are any problems with hardware, such as hard disk, memory, graphics card, motherboard, etc. If it is caused by hardware problems, it is recommended to check them.
3) In addition, is it related to your improper operation before shutting down? For example: playing games, watching videos, operating large things, using the computer for a long time caused by card? Or you downloaded something inappropriate, and the fault doesn't happen for no reason, right (if it's caused by this problem, just make sure your computer doesn't get stuck, have a blue screen, or suddenly shut down, and it won't be like this when you start it up)?
If it is caused by 3, as long as your computer does not freeze, have a blue screen, or suddenly shut down, it will not be like this when you turn it on.
If you have any questions, please ask me.
What to do if windowsxp cannot start when the computer is turned on
1. "Last known correct configuration" method
In the Windows XP startup menu, you can select the "Last Known Good Configuration" item to restore the registry by:
1. While restarting your computer, hold down the "F8" key until the Windows Advanced Boot Options menu appears.
2. Use the arrow keys to highlight Last Known Good Configuration and press Enter.
When you select "Last Known Good Configuration" to start the computer, Windows only restores the information in the registry key "HKLM\System\CurrentControlSet". Any changes made in other registry keys remain unchanged.
2. Fault recovery console method
When the computer cannot be started, you can also run the Recovery Console from the Windows XP installation CD to try to fix the error:
1. Insert the installation CD and restart the computer from the CD drive.
2. Press "R" key to select repair or recovery option.
3. If you have a dual-boot or multi-boot system, select the drive you want to access from the Recovery Console.
4. When the prompt appears, type the password of the local administrator account Administrator. In most cases, you need the password of the built-in Administrator account to use the Recovery Console, which is blank by default.
5. At the system prompt, type the "Fixboot" command and press the "Enter" key. At this time, the system will write the new partition boot sector to the system partition to fix the startup problem.
6. Type the "Exit" command, press the "Enter" key, exit the "Recovery Console" and restart the computer.
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