Hi,
I'm Rodrigo and I'll help you.
1 - To create a bootable USB drive on a Chromebook to use on other devices, you must use the Chromebook Recovery Utility
https://chrome.google.com/webstore/detail/chrom...
Rename the Windows ISO from .iso to .bin , open the Chromebook Recovery Utility, select the cog icon on the top right corner > Use local image > Select the .bin file you renamed > Select the USB drive > Create now. (All the files on the USB drive will be deleted)
2 - Yes, you can install Windows on infected PCs.
3 - Installing using the USB drive, you must wipe the system partition (C:), if the files are in the C: you will not be able to save them, you will need another way to backup the files. If the files are on another partition, they will not be affected.
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