If your Windows machine restarts without warning, consider the troubleshooting methods below for assistance in addressing the issue.

Software issues: Microsoft intended Windows to automatically reboot when issues, such as a blue screen of death, occur since the release of Windows XP. Although this feature is useful for random FAILURES, it makes troubleshooting and repair more complex. The procedures to disable and enable this function in Windows XP, Vista, 7, 8, and 10 are listed below.

• Right-click My Computer on the desktop. Open File Explorer in Windows 8 or 10 and right-click This PC in the left navigation pane.
• In the pop-up menu, choose the Properties option.
• Select the Advanced TAB or the Advanced system settings link in the System Properties box.
• Click on The settings option under Startup and Recovery on the Advanced tab.
• Disable the Automatically restart check box in the Startup and Recovery window.
• Click the OK button.

Hardware issues: If you've PREVIOUSLY attempted to introduce a new hardware device, make sure it's not the source of your problems. By looking for problems in Device Manager, you can make sure you're not having any hardware conflicts. If you've just installed new hardware drivers, you might WANT to go back to an older version. If the unexpected reboots persist despite updating drivers and removing any newly attached hardware, the computer memory is bad. Finally, improperly installed hardware devices in the computer can result in random reboots. Ensure that all cables and EXPANSION cards are correctly connected to the computer.

Computer viruses: These viruses usually cause the computer to reset every 5, 10, 15, or 30 minutes after it has booted. If you suspect your computer is infected, make sure you have an antivirus program installed and that your virus scanner definitions are updated.

Overheating: Most computers today are intended to shut down or reboot automatically if the processor, video card, or other components become too hot. Examine the rear of the computer to see if the fan on the power supply is operating. A temperature gun can be used to determine how hot the computer's hardware devices or integrated circuits are.

Issues with the Operating System: If your computer continues to reboot after completing the steps above, you're most likely dealing with a problem with the Microsoft Windows operating system. When the computer starts to boot up, restart it and enter BIOS setup. Allow the machine to sit idle for several minutes after you've loaded the BIOS setup.

If the system doesn't reboot after resting in BIOS and you've exhausted all of the above options, try enabling a restore point in Windows from before the problem began. If enabling a previous restore point fails, or if no restore points are available, you will most probably have to reinstall Microsoft Windows.

We are optimistic that this article on troubleshooting interview questions has improved your knowledge of troubleshooting and related concepts. If you have a good grip on all of the questions offered here, you will be able to comfortably crack any relevant interview. 

Useful Resources:

• Networking Interview Questions and Answers
• OS Interview Questions
• Computer Network MCQ With Answers