some pendrives have/had a little switch on them to lock them, is the case with yours maybe,likely not ,but worth a look ,also did you try it into another computer to be sure its the pendrive and not something weird in you computer causing it
caperjack
I hate 20 Questions
13,069 posts since Aug 2003
Reputation Points: 1,064
Solved Threads: 812
these things are mass produced and bound to fail ,you just got a bad one in my opinion ,i have 5 or 6 of them and every now and then one of them fuggs up and i have to format it ,i usually just use disk manager within windows ,the ones that wouldn't format for i just throw them away
caperjack
I hate 20 Questions
13,069 posts since Aug 2003
Reputation Points: 1,064
Solved Threads: 812