Due to an oversight, I've had to download the Windows 10 (plus Dell extras) Image ISO at http://www.dell.com/support/article/us/en/19/SLN297920.
However, I can't burn it to a DVD as it's 6.49Gb in size. The file is called RN4DFA00_W10x64ROW_core(DL)_v2.iso.
However, it doesn't seem to be recognised as an ISO file. I can't burn it to a blank 25Gb Blu-ray disk either although I have a BR burner.
Not possible to use a USB stick as I don't have a spare one, let alone it being big enough in any case until I get some 32Gb sticks by the end of next week.
I tried the free burning software without success and some of them have viruses. Can I do anything now to fix things by resetting to the factory settings? Thanks in anticipation.