First of all you should go to Windows Update and get all the Critical Updates for your system.
Then, get about:Buster from here:
http://www.majorgeeks.com/download4289.html
Unzip it to your desktop, run it, and:
Click Update, and then Check For Update, and Download Update; wait for the updates to be installed.
After the udates have been installed, click Start
(Wait for the initial ADS scan to complete.)
Click Yes to shutdown any IE session currently open when asked
(Wait for the about:blank scan to complete.)
Click OK to scan once more when prompted
Click Yes to shutdown any IE sessions currently open, and then Yes to begin the second pass
Click Save log
Click Exit, and then Exit again
Reboot
Scan with hijackthis and have it fix the following entries:
R3 - URLSearchHook: (no name) - {87766247-311C-43B4-8499-3D5FEC94A183} - (no file)
O2 - BHO: ohb - {999A06FF-10EF-4A29-8640-69E99882C26B} - C:\WINDOWS\SYSTEM\NSE5063.DLL
O2 - BHO: (no name) - {2BC465FE-CC23-4A25-987C-98C1F5EB60AB} - (no file)
O2 - BHO: (no name) - {9672BE2E-6A04-4A74-AD16-E3924EA731DC} - C:\PROGRAM FILES\0VO6DA3Z\0VO6DA3Z.dll
O2 - BHO: (no name) - {9056A11F-5EA6-4A67-BDE9-8D3C7C453DAC} - (no file)
O4 - HKLM\..\Run: [winupdtl] C:\WINDOWS\SYSTEM\winupdt.exe
O4 - HKLM\..\Run: [exp.exe] C:\WINDOWS\SYSTEM\exp.exe
Be sure all windows are closed, other then hijackthis, before hitting "Fix checked"
Go to the following locations and delete the highlighted file or folder:
C:\WINDOWS\SYSTEM\NSE5063.DLL
C:\PROGRAM FILES\0VO6DA3Z
C:\WINDOWS\SYSTEM\winupdt.exe
C:\WINDOWS\SYSTEM\exp.exe
Enable anything you have disabled in msconfig.
Close all browser windows, scan with HJT, and post a new HJT log along with the about:Buster log
If you still have a problem with Huntbar after doing this, see if this helps:
http://sarc.com/avcenter/venc/data/adware.huntbar.html