Can Windows crash because of electromagnetic interference?

Yes, electromagnetic interference can potentially cause hardware to behave strangely, but it is not a common cause of Windows crashes on a normal PC.

If the EMI is strong enough, it could affect signals or communication between hardware components and cause errors, freezes, or unexpected behavior. However, before replacing any hardware, I would first check more common causes such as faulty RAM, overheating, unstable drivers, power supply problems, loose connections, or corrupted system files.

You can also check Windows Event Viewer and Reliability Monitor to see if they provide any useful information about the crashes. If the problem happens only when a particular device is turned on or used nearby, that could be an important clue.

So, EMI is possible, but I would consider it a less likely cause unless there is clear evidence that the crashes are related to a nearby electrical or wireless device.