Frequently I have realised a temporary loss of the set up of my user account after someone in the family has used their user account (we have 4 in total of which one is the guest account) . The only way to recover the way it was set up is to restart the PC and it all comes back. As this is not a very quick solution (we all know how fast Windows is) I would like to find out what is happening and why and what could be done to prevent this.