This is a microsd card inside an SD adapter, that is then inserted into an SD reader in your windows machine right? Some of those SD adapters have a little lock tab that makes the card read-only. Make sure that's in the correct position.
Did you format the card under linux (perhaps as ext4)? Last I knew, Windows couldn't handle any filesystems other than its own even if you just wanted to blow away an existing partition.
Hmmm... This used to have NOOBS installed on it, so perhaps. Regardless I think it's been partially formatted because I can't see the files in it like I could when I first plugged it in.
I haven't used the NOOBS install for some time, but if it's anything like the normal raspbian image then you would have a standard VFAT partition for the initial boot, plus an EXT partition for the linux filesystem -- and Windows is probably choking on that partition. You should be able to drop the SD card into either your linux or mac machine and reformat it from either of those (or at least delete all the partitions and then format it on Windows).
Been a while since it was updated; but I used to use Win32DiskImager for reading/writing rpi cards.
I had a couple cards fail where they wouldn't throw any errors during the actual write process, but once on to the verify step (checking that what was written to the card matches the source file, after writing) then they'd fail. Data hadn't been written correctly, but it wasn't reporting failures during writes.
Perhaps this is your issue? Not sure I'd trust those cards regardless.
I havent used sd cards for a while, but I found balena etcher to be more reliable the pi's sd writer outside of pi OS or debian
There's a small chance something is wrong with my computer and not the SD Card, or it's just a bad coincidence. My "games" HDD has been getting super slow for downloading so I'm running CHKDSK. It's been going got 11 hours now and is only 17% done with stage 4. But it's actually making progress slowly but surely. It might just be a failing hard drive but it makes me wonder if my motherboard is making disk writes in general get fucky? Idk. I feel like I would've noticed major problems sooner if that were the case though.
Update: It's been over 36 hours and it's still chking that dsk! Slowly but surely.
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