Distroying data ...

I got my laptop replaced with new one since old one died within warranty period.
I had to delete the data from old hard drive and was aware that just formatting hard drive is not enough.
So after short research I bumped into chiper
Here is another link

I hope that will be good enough.

installing services without installutil ...

Apparently you can install services using dos prompt with following lines:

sc start ServiceName 
sc query ServiceName
sc stopServiceName