virtualbox.org

I am running 64-bit Windows 10 Build 14328 Insider Preview as a guest system inside VirtualBox, and the host is 64-bit Windows 10 Build 10586. I noticed that after I upgraded the guest OS to the latest preview build, I can no longer see my shared folder auto-mounted in the guest, nor can I manually mount it (it said "Windows cannot access \\vboxsvr\<my shared folder name>. Error code: 0x80070035. The network path was not found". The Guest Additions version is 5.0.16r105871.

Any idea on how to fix this? Thanks!

Update: This issue was fixed by upgrading Guest Additions to 5.0.18.

I had an almost identical issue after windows 10 forcibly updated itself (grrr).

I already had 5.0.18 additions and no new version is available so I was scratching my head.

Fixed it by re-installing guest additions and rebooting the vm.