My PC freezes when trying to transfer large files to my Micro SD

So im just about to bite the bullet and buy a new one. I was getting some files ready to mod a certain device when i noticed not only that it was taking forever, but half way through the transfer it froze My PC and stopped me from doing anything outside of any program i had open at the time forcing me to restart my computer.

After trying, unsuccesfuly, multiple times i copied and pasted the files one by one until i found that the file that apparently was causing the problem was the largest one at 700 MB.

It seems that for some reason my SD card crashes my PC when i try to paste anything remotely big in, but not when its the other way around.

This was not a problem the SD card had before, when i transfered way bigger files into it with no problem. And the problem doesnt seem to be with the PC nor the file itself, as i have tried with multiple PCs and thumbdrives.

I have tried many things by now, including formating, repairing and other things i barely understood that did jack.

I would love to hear anything that could help me with this problem. So far the only real lead ive heard was that it may be a problem with the SDs FAT32 format and it may be solved by formating it to NTFS but windows is unable to complete the formating.

Thanks in advance.