Why can't the computer start? Analysis of popular issues in the past 10 days
Recently, the issue of computers not being able to start has become a hot topic in major forums and social platforms. Many users have reported problems such as a black screen at startup, stuck logo, and repeated restarts. This article combines popular discussions and data from the entire Internet in the past 10 days to systematically analyze common causes and solutions for you.
1. Statistics on the popularity of computer failure to start problems in the past 10 days

| Question type | Proportion of discussion volume | High frequency keywords |
| Black screen no response | 42% | Motherboard light is on/fan is spinning/no display |
| Stuck in LOGO interface | 28% | BIOS/hard disk detection/startup items |
| Automatic restart cycle | 18% | Blue screen code/overtemperature/power supply |
| Other exceptions | 12% | Didi alarm sound/CMOS battery |
2. Analysis of five common causes
1.Hardware connection issues(accounting for 31%)
Loose memory modules and poor graphics card contact are the most common causes. Feedback from netizens: "After cleaning the dust and re-plugging and unplugging the memory, the problem was solved immediately."
2.power failure(accounting for 25%)
Including power supply aging, voltage instability, etc. Typical case: After a user replaced the power supply, the problem of continuous restarting disappeared.
3.Corrupted system files(accounting for 20%)
Startup failures caused by failed Windows updates have increased recently and require the use of a PE system to repair them.
4.Hard drive failure(accounting for 15%)
The life of the SSD has expired or the mechanical hard disk has bad sectors, which means the BIOS can recognize it but cannot boot.
5.Motherboard/BIOS issues(accounting for 9%)
A dead CMOS battery may cause settings to be reset, or the motherboard capacitor may be bulging or other hardware may be damaged.
3. Step-by-step troubleshooting guide
| steps | Operation content | expected results |
| first step | Check the power light and fan are running | Confirm whether the power supply is normal |
| Step 2 | Try connecting an external monitor | Troubleshooting your monitor |
| Step 3 | Turn on the computer after removing all peripherals | Check if there is any peripheral conflict |
| Step 4 | Reset BIOS (discharge battery or jumper) | Restore default settings |
| Step 5 | Use minimal system testing | Keep only CPU/Memory/Power |
4. Expert advice
1.Routine maintenance: Clean the chassis dust regularly, and it is recommended to check the hardware connection status every six months.
2.Data backup: It is recommended to use the "3-2-1" backup principle for important files (3 backups, 2 media, 1 offsite).
3.Upgrade suggestions: For old computers (more than 5 years old), it is recommended to give priority to power supply and hard drive replacement. The recent continued decline in SSD prices is a good time.
4.Maintenance judgment: If the motherboard diagnostic light shows a CPU/DRAM error, ordinary users are advised to send it for repair. Handling it yourself may amplify the fault.
5. Recent relevant hot events
• Microsoft confirmed that this month’s update will cause some AMD platforms to fail to start, and has released an emergency patch
• A certain brand of power supply was exposed to batch quality problems, involving multiple cases of power-on failures.
• The new version of Win11 24H2 requires TPM 2.0. Please pay attention to compatibility when upgrading old computers.
Through the above system analysis, when the computer cannot be started, it is recommended to follow the principle of simple first and then complex troubleshooting step by step. In most cases, basic operations will solve the problem. If you try all the methods and it still doesn't work, the core hardware such as the motherboard may be damaged and require professional repair.
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