Help Removing str.sys

Well everytime i scan with malwarebytes anti-malware, i always get the following result:
C:\Windows\System32\drivers\str.sys
It asks me to reboot and remove, but it does not actually remove it. When i rescan, i get the same thing.
Tried safe mode.
Can not open it.. says the file is in use..
:/
Can someone PLEASE help me?
Thank you so much.
Answer #1
Please download the current version of HijackThis from here: http://download.bleepingcomputer.com/hijackthis/HJTInstall.exe

• Double click and run the installer.
• It will install to C:\Program Files\Trend Micro\HijackThis\hijackthis.exe
• After installing, you should get the user agreement, press accept and Hijack This will run.
• Select Do a system scan and save a log file. This will open a notepad file of everything Hijack This found, copy and paste it back here.

Answer #2
Download Regrun Security Suite And See If That Helps!!!!
You Can Get It Here http://www.google.com?t=2456373&highlight=
Info
http://www.greatis.com/appdata/d/s/str.sys_Removal.htm