I checked for malware and problem is still and I try a clean boot process and finally I find that Bluetooth Device Monitor causes my problem.
So, what will I do next?
I follow your instruction and this is new CBS.log
https://www.dropbox.com/s/hdyihqcxaf429ha/CBS.zip
(I can run sfc /scannow in the safe mode only and the 'server busy' problem is still)
my problem is when windows starts, the message 'Server Busy : This action cannot be completed because the other program is busy.Choose 'Switch To' to activate the busy program and correct the problem.' comes up. Next, I try the command sfc/scannow(I can try in safe mode only) and this is my CBS...