If you use Windows 8(.1) or 10, you can perform a PC reset, if you experience issues with your computer that you couldn’t resolve.
The PC reset feature (which is an equivalent of reset to factory defaults option on mobile devices) will quickly set Windows back to its factory-default state and delete everything (your personal data and applications you installed), fixing any system corruption problems and removing any buggy drivers or malware that’s causing problems. You will have to reinstall your installed applications afterwards.
To reset your computer (If your computer is booting properly):
Settings -> General option -> Advanced Startup -> choose Reset
Settings -> Update and Security -> Recovery -> Reset your PC.
Note: If your computer is not booting properly, you can reset it from the Advanced boot options menu.
To access it:
Hold Shift and select Restart (if you have access to the login screen) -> Troubleshoot -> Reset your PC
Press the power button to turn your computer on and immediately press Shift + F8 (If you don't have access to the login screen)
If your Windows computer crashes or freezes when it "wakes up" from sleep mode or hibernation, disabling power-saving mode should help solve the problem (but if you use laptop you need to plug in the AC Adapter more often).
To disable power-saving mode:
Start -> Control Panel -> (Hardware and Sound) -> Power options -> Change plan settings (on the right side of the selected power plan - Balanced or High Performance) -> Change Advanced settings -> Expand the hard disk power options, by clicking on the "+" next to Hard Disk.
Change the time listed under Turn Off Hard Disk After to Never. Do the same for the Sleep, Hibernate After options.
Update the applications installed in your mobile device
Phone keeps freezing? Are the installed applications up to date? If not, make sure that you update them. Application updates can provide enhancements and security improvements that may fix application-related issues (especially crashes). To check to see if there’s an update for applications, follow these steps:
Android: Tap on the Play Store icon -> Tap on My Apps to view your downloaded and installed applications ->Tap on Update (next to every application that can be updated or you can tap on Update All, to update all the applications installed in your device at the same time)
iOS (iPhone, iPod, iPad): Tap on the App Store icon -> Tap on the Updates icon in the bottom right corner of the screen -> Select the application you want to update and tap on Update (or tap on the Update All button in the upper part of the screen, to update them all at the same time)
Note: Make sure to update all the applications regularly.
Computers get hot. Everything inside a computer generates heat, and heat can cause component instablility (RAM, CPU and etc.) and crash your PC.
If the computer case is too hot, check if all your fans are spinning properly (you know by listening closely: do they make a sound?). Make sure that all of your computer's vents, grates and filters are unhindered by dust, pet hair, and other materials that prevent proper airflow. If you find any problematic areas, use a can of compressed air to clear the airways.
If you use a laptop, make sure to place it on a hard, flat surface that won't "smother" the chassis around its vents, thus restricting airflow.
Note: Be very careful while you are cleaning your computer because it is possible that you detach something (usually the SATA cables in desktop-computer cases are prone to detatching). Double-check everything before you turn your computer back on.