After installing VirtualBox, I noticed that my computer (Windows 7) was taking an unusually long time to establish a wifi connection on startup. I found this "trick" and I tried it: http://scottiestech.info/2010/12/31/fix-slow-windows-networking-problems-when-virtualbox-is-installed/
Disabling the Host-Only Network adapter did nothing. On further reboot, it was still taking close to a full minute to get onto my wifi network.
To confirm that this was VirtualBox-related, I completely uninstalled VirtualBox from my machine. After uninstalling and rebooting, my wifi connection instantly connected.
Are there any other things I can try, besides Disabling the Host-Only Network Adapter, to fix this problem?