sandisk cruzer blade 8gb

my disk work fine but when i want to use windows7 usb tools to burn one i can’t see my removable disk at it and the program told me to use compatibility disk

Newer flash drives are configured as Fixed drives rather than Removable to conform to Windows 8’s new requirements.

If you want to use the drive to install Windows 7 try the trick posted here:

http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/Sandisk-Extreme-USB-3-0-Windows-Installation-fails/m-p/298071#M5484