The best practice to achieve best results when updating to new versions of VMware Fusion is:

1) With your existing VMware Fusion build, bring up each VM and power them off/shut them down
2) Uninstall the old VMware Fusion build
3) Download the new build
4) Install the new VMware Fusion beta build
5) Start up your VMs, all Windows VMs should offer to update VMware Tools when powered on. Say Yes and continue. If VMware does not offer to update tools automatically, go to the Install VMware Tools menu in the Virtual Machine menu to start the process.
6) Reboot VMs after VMware Tools update

This should help provide a more optimal experience.