Remember to upgrade Virtualbox Guest Additions when you upgrade Virtualbox!

If you’re wondering why you might not be getting access to your shared folders in your guest OS after upgrading Virtualbox, this could be the reason. Virtualbox Guest Additionals (like VMware tools for Virtualbox) might need to be upgraded as well.

You can expect a┬ásystem error 53, network path not found if the Guest Additions is not installed. When in the UI, it will say something like this: “Windows cannot access \\vboxsvr error code: 0x80070035 The network path was not found.”

Hope this help!