Hello iheb.zanina, welcome to the Microsoft community, I'll be happy to help you today;
I understand that the "System Interrupts" process is consuming 100% of the CPU;
What exactly is your laptop model and manufacturer?
Initially I recommend that you access the manufacturer's website and update all available drivers;
Make sure you are up to date with the latest version of Windows 10;
Press Windows key + i and access Update and Security;
Click Check for updates and do ALL pending updates;
run a disk cleanup;
Press Windows key + R and type: cleanmgr press Enter;
Click on clean system files and wait for the files to load;
Select all files and click ok to delete them;
Perform a clean boot;
Press together the keys: Ctrl + Shift + Esc to access the task manager;
Click on start and disable all programs that start with Windows;
Restart the PC and check if the "System Interrupts" process still consumes 100% of the CPU;
Hope this helps, see you soon!