I have read all others answers and came to the conclusion that they are answering the similar answer. But my answer might be more meaningful to you.
Let me tell you, If you are facing with the kind of virus which creates the shortcut of your flash drive inside it say for example you inserted an pendrive of Kingston 8gb, so when you double click on the flash drive and you will find that there is a shortcut named Kingston 8gb, and all your data presented in that shortcut, if this is the problem then you are in a great danger. This virus slowly corrupt you HDD and make your system super slow and you will loose your hard disk.
To solve this problem follow these below steps :
Step 1: Open task manager.
Step 2: Goto processes
Step 3: You will find a process running named "wuaudt.exe"
Step 4: Right click on it and hit end process.
You are done.
Note : I would rather suggest you to format your windows to be on the safe side and be in the virus free zone. And from next time, whenever you are going to insert any flash drive, make sure that its virus free.