Question

you work at a computer repair store. you just upgraded the processor (cpu) in a customers computer. the computer starts, but it locks up shortly after starting windows. which of the following is most likely causing the computer to automatically shut - down?
the cpu is bad.
the fan is not running.
the computer has a virus.
the cpu is not supported by the bios.

Explanation:

Step1: Analyze CPU - bad situation

If the CPU is bad, the computer may not even start properly in most cases. It is less likely to start and then shut - down shortly after starting Windows.

Step2: Analyze fan - not running situation

When the fan is not running, the CPU will overheat quickly. Once the temperature reaches a critical level, the computer's built - in safety mechanism will trigger an automatic shutdown to prevent damage to the CPU. This is a very common reason for a computer to shut down shortly after startup.

Step3: Analyze virus situation

A virus may cause various problems like slow performance, data corruption, etc. But it is not the most likely cause for an immediate shutdown right after starting Windows when a CPU upgrade has just been done.

Step4: Analyze BIOS - support situation

If the CPU is not supported by the BIOS, the computer may not boot at all or may display error messages during the boot process rather than shutting down shortly after starting Windows.

Answer:

The fan is not running.