yes it is

yes its windows login

no.. the data file and log files are  stored on separate drives. 170 GB from sp_helpdb (db name) query and 160 approx from the mdf location right click properties)

when I use sp_helpdb I get file size of 170GB. but when I go to the location where the mdf is placed it shows 160 GB

did you try proceeding with the default name and later change it to service account

is it services.msc

thank you everyone for your help its completed.

no tools

Thank you everyone for your help. Here is what I'm looking for : 

1.  How do I take backup
2. How to patch frequently as per the patch releases (monthly/...

what kind of permissions should i give him

the person who can see all process is the DBA, while the other person who can only see his process logs in using SQL Authentication with dbo permissions

Thank you for your reply, let me explain further...
When i run sp_who2 active I see all process, but when the other person runs sp_who2 active he gets to see...

im not getting any errors

Hi Thom

Thank you for your prompt reply... but there is time lag between the two restarts

thank you all for your help on resolving this