1. Start TaskManager and go to Process tab. Look for  csrcs.exe (don't mix up whit csrss.exe) and kill it.

2. Press Start->Run and type cmd there. In command prompt execute following commans:

cd %systemroot%\system32

attrib -s -h csrcs.exe

del csrcs.exe

3. Press Start->Run and type regedit. In the following brunch HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Pol icies\Explorer\Run delete "csrcs" parameter;

4. In the brunch HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon look for paramener "Shell", and change it value to "explorer.exe";