to access your flash drive you should be able to open my computer and then listed with the drives should be your flash drive you can just right click and then go to open. However, if this does not work do the following to convert to FAT or NTFS:
To convert a volume to NTFS or FAT from the command prompt
Open the Command Prompt window.
In the command prompt window, type
convert drive_letter: /fs:ntfs
For example, typing convert D: /fs:ntfs would format drive D: with the ntfs format.
To open a command prompt, click Start, point to All Programs, point to Accessories, and then click Command Prompt.
You can convert FAT or FAT32 volumes to NTFS with this command.