The file 'Services.exe' has been executing at intervals of less than 30 mins for some time on my PC. While it is executing it is using 98%+ of the CPU capacity. causing all other programmes to come to a virtual halt. Can anyone explain why this is happening?. It is very frustrating to have to wait for 5-10 mins each time it executes. This is a recent phenomenon and may be caused by the addition of new software etc. I have tried shutting it down but cannot do so because it is a 'critical' process.