Again quoting you:
One other possibility would be running off a very small thumb drive - although speed and durability would almost certainly suffer if I chose that. Something like this: https://www.amazon.com/PNY-Elite-X-200MB-Flash-P-FDI64GEXFIT-GE/dp/B01LFV52Y6/ref=sr_1_3?keywords=small+usb+drive&qid=1640182299&s=pc&sr=1-3
Sorry I wrote 300MB where you linked to 200MB, even less able to handle a Windows install. But this is tiring. Bye.
Would anyone vouch for the below flash drive? Thinking about getting it and making it exclusive to the dash cam
Edit: thank you OP