The diagnostics/tools run so far are showing a BootKit: Whistler
It is on Hrddsk1, in Windows 7.
Needless to say, there are risks when dealing with these situations. In your case, the issue is compounded by the dual-boot. However, the BootKit has to be removed.
We are going to use ComboFix, since it can handle Whistler, and does a back-up of the MBR to a convenient location. If there are problems, then, we can reach the back-up MBR via the Recovery Environment.
Please do the following:
Please download ComboFix:
Save ComboFix.exe to your Desktop!!
Make sure you disable your AntiVirus and AntiSpyware applications (MSE, and Windows Defender), usually via a right-click on the System Tray icon. They may otherwise interfere with the running of CF.
Note: If you are having difficulty properly disabling your protective programs, please refer to the information available through this link: http://www.bleepingcomputer.com/for...
Now, right-click on ComboFix.exe and select: Run as Administrator
Follow the prompts.
If offered the option, >skip< the Recovery Console part since you are running Windows 7.
Click on Yes, to continue scanning for malware.
When finished, CF produces a report.
Since this report can also be quite large, please go to the Uploading website:
In: Select files to upload, click 'Browse', and 'Look in' the Desktop.
Select the RU report, and click on 'Open'
You will see the following:
Your file has been uploaded successfully: (Name and size of the file)
Please copy the 'Download link', and provide it in your reply.
1.Do not mouse-click the ComboFix window while it is running.
This action may cause it to stall.
2. ComboFix may reset a number of Internet Explorer's settings, including making IE the default browser.
3. CF disconnects your machine from the Internet. However, the connection is automatically restored before CF completes its run. If CF runs into difficulty and terminates prematurely, the connection can be manually restored by restarting your machine.
Retired - Doin' Dis, Dat, and slapping malware.