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To UNLOCK the drive, I simply had to close the file handle.



CloseHandle(hFile);



Hope the above helps someone...

Hi all,

To anyone that has been following this thread. I managed to cobble together enough from other sites to be able to read a sector, make a change, and then store that buffer back at the same...

I've since read that, since Vista/Windows 7, files/volumes must be locked (exclusive?) before they can be written to, else some other app' could potentially write to the same file/sector as my app. ...

Hi Salem,

Many thanks for getting back to me quickly on this.

Aye, I've noticed that before, that things don't happen and there's no error. Annoying! :-)

The opening in "a" mode is what...

Hi all,

I've been programming in Visual Studio 2015 - Windows Forms Managed C.

What I'd like to be able to do now is write to an SD card by sector i.e. not just create files using the simple...