- Boot your system in Safemode
- Open your flash drive via Command Prompt (do this via Start->Run->cmd.exe).
- Change your logged drive to your USB flash drive (e.g. if your flash drive is E: then type E: on the command prompt then press enter)
- Type ATTRIB -H -R -S AUTORUN.INF then press enter
- type in “del autorun.inf” then press [Enter]
After reboot, you can now access your drive.