I had Second Life working on Windows 10 build 16179 64bit and NVIDIA geforce driver 381.89
Updated to Windows 10 build 16184 and second life viewer gets to initialising VFS / initializing VFS and then crashes before the log in screen shows
I had the same problem (crashing before log in screen) with an older win10 build and older geforce drivers. Last time, I just had to wait for a new geforce driver to be released install it and second life was brought back to life.
I think it's a matter of waiting until NVIDIA do release a newer driver
rollback to the older