SanDisk Cruzer Blade 16GB write protected error

Are you serious that you, as an ‘expert’ still think that it is a Windows problem?”

In SOME cases yes.  I have experienced the problem on a Windows 7 system and resolved it by changing a Windows 7 settings.  The above poster resolved the problem on an XP system by changing a Windows XP setting.  Hardware problems don’t get fixed with Windows setting changes.  So in SOME cases the problem is a Windows problem.  And in SOME cases it appears to be a hardware problem.

As for the cause of the latter it’s hard to say.  Low voltage, high voltage, heat, etc all may play a role.  A manufacturing problem would seem to be something that would show up as soon as the drive is plugged in but that’s never what’s been reported.  It’s always after the drive has been used or being used.