I've been running Windows 10 since its public launch and not had a problem until now. Suddenly it's started write protecting USB drives when I plug them in. It started yesterday when I plugged a drive in and Windows detected a problem with the drive and instructed me to scan and repair, which I did. I can view the content but not write or delete. I tried the drive in another machine using Windows 7 and it said that the drive malfunctioned. I put this down to a faulty drive although it has never failed me before.
Today, I plugged a different USB flash drive into the laptop and was again informed that the drive needed scanning and repairing. The repair was successful and I began copying files but after a minute or two the copy failed and a notification popped up that the drive was write protected. Again, I can view and access the files and can copy from the drive but cannot write to or edit. As it happens, the data on these two drives are unimportant, but I now fear connecting my media centre drive or work memory stick as the data on those drives are much more important.
The only thing I can think of is that something on a system update at the weekend has caused this problem because I've used USB flash drives on this new laptop under Windows 8 and Window 10 with no problem before.
I hope someone can shed some light on this matter.
I've just tried another, old Kingston Data Traveler USB drive knowing that it's good quality and never let me down, and also knowing that the data on it is not important. I plugged it in and had the same message stating that there was something wrong with the drive and instructing me to repair. I ignored the message and the drive window opened, I have deleted folders and am currently writing £Gb of data to it with no problem.
So, the problem appears to be Windows 10 determining that there are non-existent problems on the flash drive and the repair process locking them.
Now all I need to do is to try and reverse the write protection on these two drives. I've tried the cmd and regedit methods with no success.