There can be a variety of different causes for a computer to freeze when running Windows.
Hardware Issues
1. Overheating: One of the most common causes of computer freezing is inadequate cooling caused by dust accumulation inside the system unit, faulty or inadequate fans, or insufficient case ventilation. Too much heat can cause components to become too hot, which can lead to instability, system crashes and even permanent damage to hardware.
2. Faulty RAM (Memory): A failing computer memory module can cause instability, system crashes and freezes. High temperatures, physical shock, misalignment of modules and improper installation can all cause problems with the memory.
3. Bad power supply: A failing power supply can cause instability as well as random shutdowns and freezing issues. Common symptoms of a faulty power supply can include flickering screens, random shuts down, noisy fans and system start up that fails.
4. Defective Hard Drive: Corrupt or damaged hard drive sectors can cause issues with the system boots, system crashes or freezing. Additionally, if the hard drive is not connected correctly or fails to register correctly then this can also cause freezing issues.
Software Issues
1. Incompatible Programs: Having incompatible or outdated software installed can cause issues with the operating system. It is important to ensure that all programs are compatible with the version of Windows being run, as well as any other applications that may be installed.
2. Viruses and Malware: Viruses and malware can completely interfere with the internal workings of Windows and cause instability, system crashes and freezing. This can be prevented by using up-to-date anti-virus and anti-malware software.
3. Corrupted System Files: Corrupted system files can cause issues with the operating system leading to freezing and system crashes. This can be caused by viruses, malware and incompatible programs as well as incorrect shutdowns. Using System Restore or the System File Checker can help to detect and repair any corrupted files.
4. Outdated Drivers: Outdated drivers can cause freezing issues and system instability. It is important for users to keep track of driver updates and install them when necessary. Keeping the BIOS up to date can also help in avoiding freezing.
5. Poor Maintenance: Poor maintenance, such as not performing regular disc cleanups, defragmentation, or registry scans can lead to freezing issues. It is important to keep the system clean and free of any clutter that can slow it down or cause errors.
6. Overloaded Resources: Having too many applications and processes running at once can slow down the system and cause freezing. It is important to check the Task Manager to make sure no unnecessary applications or processes are running that may be causing the issue.
7. Power Settings: Incorrect power settings can cause your computer to freeze. Make sure that the correct power settings are enabled for your computer and that the sleep mode is disabled.
These are only some of the potential causes of computer freezing; however, troubleshooting should be done to find out the exact cause of the problem. It is always best to contact technical support for assistance if the computer continues to freeze.