"Computer malfunction & window doesnt certificate it" appears when I attach NASH 2 GB flash disk , pl serve.

"Computer malfunction & window doesnt certificate it" appears when I attach NASH 2 GB flash disk , pl serve.

Sounds similar to you don't have the proper drivers. Go into "control panel" "system" "hardware" and "device mgr." to see if you enjoy a yellow explanation point subsequent to any USB port. follow instructions to install drivers.
Sounds like a USB port, or driver problem