My new second hand laptop..

[RED-DOG]

Won't write to an SD card. It says the card is write protected.

I have made sure the card is unlocked, tried the card in a different computer to prove it isn't locked and tried a different card in this computer.

I can write to a USB drive and to an SD card via a USB card reader, just not directly via the card slot.

I can read from the card and copy from the card to the laptop.

I've tried Command prompt - disable read only.

I've re-installed the drivers

I've turned it off and on again.

[Longines]

Tried formatting the card?

Maybe try an Ubuntu live CD to check if writing is also toast under a different OS.

[RED-DOG]

Tried formatting the card?

Maybe try an Ubuntu live CD to check if writing is also toast under a different OS.

Can't format cos it says write protected.

Perhaps you would like to explain your second suggestion in layman's terms for the benefit of our less computer-savvy readers.

[Longines]

https://tutorials.ubuntu.com/tutorial/try-ubuntu-before-you-install#0

Ubuntu is a free operating system that can be used instead of Windows. You can boot it from a CD or USB thumb drive without affecting your existing Windows  install. If writing to a SD card also doesn't work under Ubuntu then it may point towards a hardware issue. On the other hand if it does work then it shows it must be a Windows problem.

Ubuntu is very intuitive,  file explorer etc. pretty easy to try out.

[RED-DOG]

https://tutorials.ubuntu.com/tutorial/try-ubuntu-before-you-install#0

Ubuntu is a free operating system that can be used instead of Windows. You can boot it from a CD or USB thumb drive without affecting your existing Windows  install. If writing to a SD card also doesn't work under Ubuntu then it may point towards a hardware issue. On the other hand if it does work then it shows it must be a Windows problem.

Ubuntu is very intuitive,  file explorer etc. pretty easy to try out.

Getting Ubunto on to a USB drive looks pretty complicated.

[Longines]

https://tutorials.ubuntu.com/tutorial/tutorial-create-a-usb-stick-on-windows#1

Pretty simple, no?

[RED-DOG]

https://tutorials.ubuntu.com/tutorial/tutorial-create-a-usb-stick-on-windows#1

Pretty simple, no?

Can't seem to download/launch Rufus for a start.