If you have been wondering what process csrss.exe is and why it is running, then here are the details.
Csrss.exe is a process used by the Microsoft Client Server Runtime Server Subsystem and hence is the process name csrss.exe. The process is used for managing the majority of the graphical instruction.
Why is it necessary?
Csrss.exe is necessary for the proper functioning of the Windows and its termination can result in Blue Screen of Death. On the other hand in notebooks and laptops, the process csrss.exe handles the power management schemes.
Csrss.exe is also registered as a Trojan and if your system has more than one occurrence of the process, then this process should be treated as suspicious.
If Csrss.exe uses 100% of the CPU When you Right-Click an item in Windows Explorer or on the desktop then it is sure that your user profile is corrupt.