OKay so you got the rebooting to stop. Just got to solve the other issue with the csrss.exe. Have you done all the scans? AV, spyware, malware and such?
Try using Avast or NOD32 for AV. Malware M$ has the best tool.
Spyware you have many options but i would say Windows Defender Beta 2. Best one in my opinion.