CPU Usage Stuck at 30%

If in the top part of the Processes tab, if you have nothing open and running, then below is the list of running processes etc. But the details tab is where you want to look because it contains all running processes and the process tab does not show them all.

The 30% being used by your processors will be in the details tab with item or items showing a CPU usage in the % column that will total 30%. This is how you know what is using what %.

I'm sorry but there are no background process using 30% of cpu. The highest one is Microsoft Software Protection Platform, using 7% of cpu. The other one is Explorer, using 3% of cpu.

Should i disable it?

That is 10%. So there is another 20% being used somewhere and it must show in details tab using more details on bottom to show all processes. It has been this way from day one of Windows OS's. Or maybe there is malware or a virus. But it still should show CPU usage and items combined will equal the total CPU usage.

select the details tab, and select show all on bottom. Then find which item is using the CPU % usage and report back here the item name and CPU %. It could be downloading/installing windows updates, doing a defender scan or many other processes it does through Task Scheduler. Or maybe something could be wrong.

If in the top part of the Processes tab, if you have nothing open and running, then below is the list of running processes etc. But the details tab is where you want to look because it contains all running processes and the process tab does not show them all.

The 30% being used by your processors will be in the details tab with item or items showing a CPU usage in the % column that will total 30%. This is how you know what is using what %.

I'm sorry but there are no background process using 30% of cpu. The highest one is Microsoft Software Protection Platform, using 7% of cpu. The other one is Explorer, using 3% of cpu.

Should i disable it?

That is 10%. So there is another 20% being used somewhere and it must show in details tab using more details on bottom to show all processes. It has been this way from day one of Windows OS's. Or maybe there is malware or a virus. But it still should show CPU usage and items combined will equal the total CPU usage.

Should i reinstall the OS ? Because i have tried to scan it but no virus found

select the details tab, and select show all on bottom. Then find which item is using the CPU % usage and report back here the item name and CPU %. It could be downloading/installing windows updates, doing a defender scan or many other processes it does through Task Scheduler. Or maybe something could be wrong.

No, there are nothing wrong in the process, no updates, no win defender scan

If in the top part of the Processes tab, if you have nothing open and running, then below is the list of running processes etc. But the details tab is where you want to look because it contains all running processes and the process tab does not show them all.

The 30% being used by your processors will be in the details tab with item or items showing a CPU usage in the % column that will total 30%. This is how you know what is using what %.