OK, now I understand what you meant, thanks for taking the time to explain!
I'm not sure the latter is true; it seems unreasonable because keeping the device locked and encrypted is sufficient.

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Thank you for all the suggestions.
The staff at this nursing home is pretty good at recovering personal belonging like phones, remotes (that some residents use to talk to the family back home) etc but not her clothes as they must frantically find some when she has an appointment as her cupboard is nearly empty.

She has tried the Samsung slate mentioned above and seems to be happy with it. Personally, I find the Linux games more user-friendly (sizes) and if she becomes dissatisfied, I am tempted to try disconnecting the usb stick holding the ISO file and plugging a usb keyboard to proceed with the Linux install, as suggested above.
Am I correct to assume that by the time parameters are to be entered for the installation of the OS, the ISO file(s) is in memory and the ISO usb stick is not required plugged in anymore? I could wipe out Windows before finding it does not work and leaving her with no game to play, in which case, would the purchase of a Bluetooth keyboard fix the problem?

If you install Linux to the internal drive, the USB installation drive would no longer be needed. IMO that would be safer, because the USB drive can easily be lost. But trying it out and making sure everything works before doing that is a very good idea. Good luck with it, and I hope your mother is pleased with the result, howeever it turns out.

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