Every Saturday windows writes a lot to the SSD.

How about restore points?

 

I disabled system restore.

 

Change the date temporarily to next Saturday(2/18/12), then reboot. That way you can test/retest things without having to wait many days And, you can test everyday; multiple times if you've determined the time during the day when this happens and fiddle around with the hourly/minute clock.

If stuff happens, then it -is- date dependent. If nothing happens, then you may be encountering a countdown timer that is not date dependent, but just happens to countdown an interval that arrives on the next saturday.

 

Thanks for the tip

I have tried setting time in 10-minute increments. It does not seem to trigger the writing.

The writing must be countdown triggered as setting the time did not have any effect

I will keep you all updated on Saturday. I will set the time one day ahead to make sure that it is countdown triggered.

 

Update

Today I caugh the process in action (although it is Friday).

Here is a screenshot:


Does anyone know what this is?

 

What is mscorsvw.exe and why is it eating up my CPU? What is this new CLR Optimization Service? - David Notario's WebLog - Site Home - MSDN Blogs

I hope this will help.

Have a nice weekend.