Computer Turns On Then Off

Computer turns on then off on different points such as in the middle or before operating system loads. There can be various reasons behind this problem; however, it is noted that when computer turns on then off without any warning message then it can either be faulty hardware or registry settings are incorrect or damaged. To fix the problem, first of all identify root cause.

Common Causes:

Corrupted Windows registry.

Virus.

Faulty Hardware.

Below are given some steps to help you resolve the problem when computer turns on and then off by itself without any warning message.

Fix Windows Registry:

If your computer turns on and then off during boot process or in the middle when some applications are running then first thing to do is to repair Windows registry. Registry is database where all information related to hardware and software is stored. Information in registry database is stored in form of entries/keys. When these keys are damaged or corrupted due to installation/un-installation of any program or due to any other reason then only option is to repair registry. Follow these steps.

1. Restart your computer.

2. Press and hold F8 key before log-in screen.

3. Run Windows in Safe Mode.

4. Download a reliable registry cleaner and PC optimizer software.

5. Install on your computer.

6. Follow simple instructions and clean Windows registry using this software.

7. You are done.

Scan System for Viruses:

Your computer can turn on and then off due to virus. If you dont have anti-virus program on your system then first of all download it or install from a CD disk. Virus can automatically turn computer on and off when your anti-virus program is weak. In this situation you need to uninstall anti-virus and download better one. Follow these steps properly uninstall anti-virus.

1. Click on Start button.

2. Go to Control Panel.

3. Double click on Add or Remove Programs.

4. Select your anti-virus and Remove it.

5. You are done.

Faulty Hardware:

Faulty hardware often causes your computer to turn on and then off automatically. This problem may occur due to RAM, Power Supply Fan or any other device that you recently added to your computer. To fix the problem, first of all unplug hardware device that you recently added to your computer. If you did not add something to your computer then check error code through Event Log. Follow these steps.

1. Right click on Computer icon.

2. Click on Manage.

3. Under system tools click on Event Viewer.

4. Check for System and Application errors.

5. Double click on error.

6. Copy this error and try to search solution against problem.

Recommended Fix:

Use regInOut registry cleaner and PC optimizer software to fix the problem computer turns on and then off. This globally known Intel Software Partner is available on official website of RegInOut system utilities.