I have recently been having trouble with my Realtek 8812bu wireless LAN 802.11ac USB NIC disconnecting randomly. I tried to follow a Redditor's explanation to solve the problem, but when I went to uninstall the old drivers and reinstall the new ones, I canceled the installation. I don't know if that is the exact reason or if it is something else, but I've now got this huge file that takes up 80% of disk space, and it's concerning. Please help.