What is HijackThis
HijackThis is a utility developed by Trend Micro which serves for malware detection and removal.
Download Trend Micro HijackThis from the official website:
How to use Trend Micro HijackThis
The utility does not need to be installed.
1. Open the folder containing the downloaded file and launch it as administrator:
2. Press I accept
3. Press Do a system scan and save a log file:
and wait until the scanning is finished.
4. Check all items you wish to fix and press Fix checked: