Solved identify system hog

[needsleep]

Every afternoon, I see the startup of a makecab.exe, csrss.exe and a conhost.exe. It drags my core-2 duo system to its knees. Can you help me identify what program is causing this to run?
Thanks,

 

[samuria]

Windows runs makecab.exe to reduce the size of the old CBS log file. You can find compressed CBS.cab files under C:\Windows\logs\CBS. Windows scans for updates at start, so it detects too large logs and compressed them. TRY DELETING THE LOGS

 

[needsleep]

The logs comprised 19 Gb.
Thank you for your help, Samuria!