Thanks.
All minidumps point at a file named csrss.exe - and memory corruption.
Csrss.exe is a system file and should be located in \Windows\system32 - nowhere else.
If you find csrss.exe anywhere else it's, most likely, malware.
Having said that - scan your computer for virus/spyware.
Also - run chkdsk:
Right click the drive in "My computer" >> Properties >> Tools >> Check now. Tick both options and click "Start":
