Windows 10 can't extract driver from client

I use steam link with steam on windows 10. The client fails installing driver.
LOG:
2019-02-06 00:56:58 INFO :VirtualHere Client 4.6.5 starting (Compiled: Jan 17 2019 12:52:32)
2019-02-06 00:56:58 INFO :Client OS is Windows 10 (build 17763), 64-bit edition
2019-02-06 00:56:58 INFO :Using config at C:\Users\hu_ya\AppData\Roaming\vhui.ini
2019-02-06 00:56:58 INFO :IPC available at \\.\pipe\vhclient
2019-02-06 00:57:06 INFO :No drivers found, they will be installed
2019-02-06 00:57:07 ERROR :can't create file 'Z:\vh831\vhdrivers.exe' (error 3: The system cannot find the path specified.)
2019-02-06 00:57:07 INFO :assert:/home/michael/company/mingw64-llvm/llvm-mingw/output/wxWidgets-3.1.2/include/wx/any.h,966,RawAs,"Assert failure",Incorrect or non-convertible data type

I tried to extract driver, it fails with the same reason.

Z: is my ramdisk, and my temp dir is Z:\Temp, I don't understand the driver has to be extracted to Z:\, and there is no way to circumvent.

#2

vhui64.exe -x uses the TMP environment variable to find the users temporary directory. Then it will extract the driver files to there.

Could you start a Windows command prompt then do this

set TMP= Z:\Temp
vhui64.exe -x

then cd to the extracted directory and run:

dpinsts.exe
vhenum.exe -3
#3

It works,I'm happy with steam link. Thank you.