WARNING: New buggy feature introduced - Think carefully before updating from version 4.17 to higher builds in CCleaner Posted September 26, 2014 · Edited September 26, 2014 by APMichael Strange, no problem here. I disabled monitoring that way: 1.) Options > Monitoring > uncheck "Enable system monitoring"2.) Options > Advanced > uncheck "Enable Active Monitoring" Edit: Found the Bug Reporting thread. Strange that it does not work one some systems?!