Hello,
Thank you for posting your query on Microsoft Community.
I can understand that it must be upsetting for you. We will work towards fixing this issue for you.
Microsoft system protection background executes under the SYSTEM account within Windows with extensive privileges on the local computer.
High CPU usage can halt the system entirely, forcing you to manually shut down and restart the computer. There are several causes of high CPU usage, like Malwares they comes in many different forms---virus, Trojan, spyware, worm---and can increase, or even max out, CPU usage. The issue could also be due to Malfunctioning or Incompatible Software.
I would appreciate if you can provide us the following information to help us understand the issue better?
- Did you make any recent changes on your computer before this issue occurred?
I would suggest you to follow the methods given below.
Method 1. Run Performance Troubleshooter
The Performance troubleshooter checks issues that might slow down your computer's performance, such as how many users are currently logged on to the computer and whether multiple programs are running at the same time.
- Press windows key + X key.
- then clicking Control Panel
- In the search box, type troubleshooter, and then click Troubleshooting
- Under System and Security, click System Maintenance.
If issue didn’t get resolved try method 2
Method 2:
I would suggest you to try following steps and check
Step 1: Try to login into Safe Mode.
Boot the computer in Safe mode and check if the issue persists. Safe mode starts Windows with a limited set of files and drivers. Startup programs don't run in safe mode, and only the basic drivers needed to start Windows are installed.
To go into safe mode refer the link given below
Windows Startup Settings (including safe mode)
http://windows.microsoft.com/en-us/windows-8/windows-startup-settings-safe-mode
If the problem does not exist in safe mode, try to perform a clean boot and check.
Step 2: Perform Clean Boot.
Putting your system in Clean Boot state helps in identifying if any third party applications or startup items are causing the issue.
Refer: How to perform a clean boot in Windows
http://support.microsoft.com/kb/929135
Note: After troubleshooting, refer to this section "How to reset the computer to start normally after clean boot troubleshooting".
If issue still didn’t get resolved try method 3
Method 3: Run Microsoft Safety Scanner
Run a full computer scan with the Microsoft Safety Scanner to make sure that the computer is virus free.
Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
Note: Any data files that are infected may only be cleaned by deleting the file entirely, which means there is a potential for data loss.
Hope this helps. If you have any other queries, please get back to us and we’d be happy to help.
Thank you