What should I do if the computer cannot be turned on? ——Full analysis of common problems and solutions
Recently, the discussion about computer boot failure has become one of the hot topics on the Internet. Whether you are working or studying, it will cause great trouble if the computer cannot be turned on. This article will combine the hot content of the entire network in the past 10 days to sort out common causes and solutions for startup failures, and provide structured data reference.
1. Statistics on recent popular boot fault types
| Fault type | Proportion | High frequency keywords |
|---|---|---|
| Black screen no response | 35% | The power light does not light up and the fan does not rotate. |
| Blue screen/error report | 28% | 0x000000f, bootmgr is missing |
| cycle restart | 20% | Automatically restarts and cannot enter the system |
| Card LOGO interface | 12% | Brand logo frozen, BIOS stuck |
| Others | 5% | Didi alarm sound, hard drive abnormal sound |
2. Six core solutions
1. Troubleshooting power problems
• Check if the power cord is loose and try changing the socket
• Laptop users should check the battery power and try removing the battery and plugging it in directly.
• Check whether the power switch of the desktop computer is turned on and test whether the power fan is rotating
2. Hardware self-test steps
| Operation | Description | Applicable scenarios |
|---|---|---|
| Memory re-insertion | After the power is turned off, pull out the memory stick and wipe the gold finger with an eraser. | Black screen/alarm sound |
| CMOS discharge | Remove the motherboard battery and let it sit for 5 minutes | BIOS setting error |
| minimal system method | Only keep the CPU, single memory, and graphics card | Hardware conflict troubleshooting |
3. System repair methods
•Windows system:Use the installation USB disk to enter "Repair Computer"
•Mac system:Command+R to enter recovery mode
•Linux system:Repair grub boot via LiveCD
4. BIOS/UEFI settings
| Setting items | Recommended value | function |
|---|---|---|
| startup mode | UEFI(new computer)/Legacy(old computer) | Match system installation method |
| secure boot | Disabled | Solve driver compatibility issues |
| boot sequence | System hard drive first | Avoid launching from other devices |
5. Emergency data rescue plan
• Use PE boot disk to access hard disk data
• After the hard disk is removed, it can be read through the USB adapter
• Professional data recovery services (prices range from 500 to 3,000 yuan)
6. Self-check list before sending for repair
| Check items | normal behavior | Exception handling |
|---|---|---|
| Power indicator light | Steady on / flashing | Replace power adapter |
| hard drive sound | Smooth operation | Stop powering to prevent damage |
| Motherboard alarm sound | 1 short sound | Check the motherboard manual code |
3. Recent hot fault cases
1.Windows updates cause:Microsoft's April update patch KB5034441 caused startup failure, requiring manual adjustment of the recovery partition size
2.Graphics card compatibility issues:RTX40 series graphics cards have UEFI conflicts with some motherboards, and the BIOS needs to be updated.
3.SSD failure:Some domestic SSDs experience disk dropout in high-temperature environments
4. Suggestions on preventive measures
• Create regular system image backups (Acronis True Image recommended)
• Install a UPS to prevent sudden power outages
• Clean the dust inside the chassis every six months
• Important data follows the 3-2-1 backup principle
Through the above structured analysis and solutions, most boot failures can be effectively handled. If the problem is still not solved, it is recommended to record the specific fault phenomenon (including the number of alarm sounds, error codes, etc.), which can greatly improve the maintenance efficiency when contacting professional after-sales personnel.
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