Ried

Close any open browsers.

Run a scan with HijackThis and 'check' the following entries:

O9 - Extra button: Æô¶¯WebѸÀ× - {962EFB8E-2683-42d4-AC74-AAA4C759B9C6} - http://my.xunlei.com (file missing)
O9 - Extra 'Tools' menuitem: Æô¶¯WebѸÀ× - {962EFB8E-2683-42d4-AC74-AAA4C759B9C6} - http://my.xunlei.com (file missing)

Click 'Fix Checked' and close HijackThis.

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This next tool tends to be a bit aggressive, but if you follow these instructions, we'll be able to easily move back any programs/files it may quarantine unnecessarily:


Download Dr.Web CureIt to the desktop:
ftp://ftp.drweb.com/pub/drweb/cureit/drweb-cureit.exe

• Doubleclick the drweb-cureit.exe file and Allow to run the express scan
• This will scan the files currently running in memory and when something is found, click the yes button when it asks you if you want to cure it. This is only a short scan.
• Once the short scan has finished, mark the drives that you want to scan.
• Select all drives. A red dot shows which drives have been chosen.
• Click the green arrow at the right, and the scan will start.
• Click 'Yes to all' if it asks if you want to cure/move the file.
• When the scan has finished, look if you can click next icon next to the files found:
• If so, click it and then click the next icon right below and select Move incurable as you'll see in next image:
  
  This will move it to the %userprofile%\DoctorWeb\quarantaine-folder if it can't be cured. (this in case if we need samples)
• After selecting, in the Dr.Web CureIt menu on top, click file and choose save report list
• Save the report to your desktop. The report will be called DrWeb.csv
• Close Dr.Web Cureit.
• Reboot your computer!! Because it could be possible that files in use will be moved/deleted during reboot.
• After reboot, post the contents of the log from Dr.Web you saved previously in your next reply.

Did you install Thunder Networks yourself?

Are you still getting that error message when you try to access your external hdd?