Bitlocker error when inserting any USB device, error event ID 24620

Encrypted volume check: Volume information on cannot be read

Source of error is Bitlocker-driver

The above is the error, notice it doesn't list a volume. I checked and bitlocker is not turned on, chkdsk shows no errors and everything is actually running fine, just happen to notice this error in event log. Don't know how long I have been getting it, I only looked at event log as I cleared all logs.

Seems this link, MS is saying don't worry about it? https://support.microsoft.com/en-us/kb/976733

Malware and Webroot shows no problems.

Running Windows 7 Ultimate 64 bit. Restart really didn't make any difference, also cleared all Firefox cache and cookies. At first reboot did stop the error, then it started up again, after several restarts, it doesn't seem to help, still get error.