I have Windows 7 installed and up until recently I could read and write files from my hard disk to my usb thumb drive. Now after some updates were downloaded and applied (automatically so I am not sure what was installed), when I insert my drive into the usb slot, the Bitlocker Drive Encryption window pops up and I have two choices. Encrypt this drive to allow write access or don't encrypt this drive but it will be read only. I checked Control Panel -> Bitlocker and it says its off my for C drive and my usb thumb drive. So i'm not sure why its wanting to encrypt it. How do I get rid of this Bitlocker and gain write access to my usb drive?