Task host 50 % CPU usage even at idle time.

[hakannan]

Hello,

I am using Windows 7 OS on a 32 bit

the probelm am facing is that CPU usage goes highabnormally and when i noticed using the process explorer tool it says task host is eating up my CPU at 50 %.

says that RAC is using most of it.

I have attached the snap shot of it.

Please help me to resolve and improvet the system performance.

 

[richc46]

Welcome
Although that fiule is required for the proper operation of Windows. It may be a virus in disguise
Please run your anti virus full Scan
Download and run malwarebytes full scan

Here is some information about the .dll. Although the article applies to XP it is equally applicable to Windows Seven
What is the ntdll.dll file?