how to remove boot area from flash drive

[merlin666]

I am using a few USB sticks for readyboost and always have them in my hub. One of them was temporarily used to create an Ubuntu Live stick, but now that I removed Ubuntu from it about 32Mb remain used and I assume there is some bootable info in it, as Win7 is no longer booting with this stick inserted. I have tried formatting but this does not help. Is there a way to wipe the USB stick clean and remove any boot sector info?

 

[theog]

Use the CLEAN ALL command
http://www.sevenforums.com/tutorials/52129-disk-clean-clean-all-diskpart-command.html
Than remake the partition
http://www.sevenforums.com/tutorials/2674-partition-volume-create-new.html

 

[kiks]

Use the CLEAN ALL command
http://www.sevenforums.com/tutorials/52129-disk-clean-clean-all-diskpart-command.html
Than remake the partition
http://www.sevenforums.com/tutorials/2674-partition-volume-create-new.html

This really helped. Thanks.