I am trying to use Win32DiskImager to upload a new image to my microSD card. I am doing this on a Windows 7 64 bit PC. The image does get uploaded, however the old image is not getting removed. My understanding is that the old image is formatted prior to the new image being read to the card when using Win32DiskImager. Is this correct?
I've tried to format the card using SDFormatter but the sofware is saying that the card is write protected. I am using a holder for the microSD card so that it will fit into a standard SD slot on my PC but despite moving the button on the left the of reader, it is still saying write protected. Any ideas?
You're correct that Win32DiskImager does not need the uSDHC card to be formatted before its use. However the currently preferred tool for writing *.img files is Etcher: https://www.raspberrypi.org/documentati ... /README.md
Occasionally a uSDHC may "end up" becoming read-only (as far as Windows is concerned). Sometimes this is a permanent failure or a "possibly recoverable" issue - two things to try a) if you have a USB-based card reader/writer, try that (not all built-in card slot are fully uSDHC ccompatible) b) if a) failed but you have (access to) a Digital Camera try its "formatting" option. If its still "read only" then it's time for a new one (they do wear out).
Usually running Raspbian Jessie on up to 12 of 13 Pi's (an A, B1, 2xB2, 2xB+, A+, P2B, 3xP0, P0W) and Stretch on my P3B. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm