Hi,
I have the same issue here and I am very fed up with my stupid TL-WN851ND...
When I bought it, I wanted to use it on Windows 8.1 and I had the same freezing issue. I managed to solve the problem thanks to some online research by installing the drivers in Compatibility Mode (right click on the setup.exe, select Properties, Compatibility, select Windows 7 and Run this program as an administrator).
Quite surprisingly, that worked well (no more freezing) until I updated to Windows 10 :/...
Windows 10 probably replaced the former driver with a newest one, and from now on I am struggling with the freezing issue again.
I tried to do the same trick with the compatibility mode, but that time that does not work: the card does not freezes the PC anymore but it disconnects from the Wi-fi network every 5 minutes or so. If I right click on the icon in the task bar and select the network trouble shooter then the card starts working again for 5 or so minutes...
According to this website, the card uses the Atheros AR9227 chipset, so I tried installing the latest Atheros AR9227 drivers from here: www.https://www.atheros.cz/atheros-wireless-download.php?chipset=33&system=8
but then the freezes issue comes back.
So I am completely lost and have no more ideas apart of smashing this idiot card which pissed me off from the very beginning
😛 !!!
Could u please help

?
Thanks a lot!!
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