There are a variety of reasons why your computer may display an error message when it starts. The most common causes of startup errors are listed below.
1) Corrupt System Files: If any of your system files become corrupt or damaged, you may receive errors at startup. This can be caused by viruses or malicious software, or may be due to physical damage to the hard drive.
2) Hardware Issues: If any of the hardware components connected to the system is not working properly, the system will not boot up correctly and will display errors. Common hardware issues include bad memory, broken power supplies and faulty motherboards.
3) Incompatible Software: If the software you are trying to run is not compatible with your operating system, the system will not be able to start up correctly, and you may receive errors.
4) Overheating: If your system is overheating, it may be causing errors to appear when you attempt to start up. To help keep your computer from overheating, make sure to clean out any dust that has accumulated in the vents and keep the system away from direct sunlight.
5) Low Hard Drive Space: If there is not enough space on the hard drive, the system may not be able to boot up correctly and you may receive errors. To reduce the amount of space taken up on your system, delete any old or unnecessary files that may be taking up storage space.
6) Damaged Drivers: If a driver becomes corrupted or damaged, the system may not be able to access all of the components required to start up, resulting in errors. To fix this, try updating the driver or reinstalling it if necessary.
7) BIOS Settings: If the BIOS settings are incorrect, your system may not be able to recognize hardware components or access software, resulting in errors. To correct this, make sure to review the BIOS settings and ensure they are correct.
8) Power Surge: If your system experiences a power surge, it can cause errors to appear when it attempts to start up. To help protect your computer from power surges, use a surge protector and make sure your power supply is functioning correctly.
9) Malware/Viruses: Viruses and other malicious software may prevent your system from starting up correctly, causing errors to appear. To help keep your system safe, make sure to keep your antivirus program up to date and scan your system regularly for any malicious programs.