Let's deal with your USB drive.
For the flash drive:
Please download Flash Disinfector: http://download.bleepingcomputer.co...
Save it to the Desktop.
Double-click Flash_Disinfector.exe to run it
Follow the prompts...
The utility asks you to insert your flash drive or other removable drives.
Exit the program when it finishes scanning.
Restart the computer when done.
Note: Flash_Disinfector creates a hidden folder named autorun.inf in each partition and every USB drive plugged in when you run the tool. Do not delete this folder. It helps protect your drives from future infection.
For the PC:
When the computer restarts, tap the F8 key before Windows starts, to bring up the Windows Advanced Options menu
Use the arrow keys to select Safe Mode with Networking
In Safe Mode with Networking, download iExplore.exe, which is a renamed copy of RKill:
[If the file does not download, paste the following, >without the brackets<, in the address bar of your browser:
Save the file to the Desktop, and double-click on it.
Ignore any messages, and allow the file to run until the command window closes.
Without a reboot, download Malwarebytes’ Anti-Malware (black button with green and white icon) Save to the Desktop:
Double-click mbam-setup.exe and follow the prompts to install the program.
Run Malwarfebytes’ AntiMalware and update the program.
Once updated, select Perform Full Scan and click the scan button.
When the scan finishes, click OK in the message box, and you will see the results of the scan.
Click the Remove Selected button to get rid of the malware.
When Malwarebytes finishes, you may be prompted to reboot. If so, reboot.
>>Please post the >Malwarebytes log< in your reply.<< so we can see where we are at, and plan any additional removal strategy.<<
Retired - Doin' Dis, Dat, and slapping malware.