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I am using the guest account and have it on. I got my mouse set up but don't see all the icons that are on my normal desktop. The first problem I have is a message box that says permission denied accessing the kernal driver. I am totally lost to know what to do now.
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The "kernel" is the very lowest levels (core) of the operating system, where the "system" processes live. That error most likely has to do with the guest account having insufficient rights to do something. As Desperado say, the easiest thing to do is make a fresh user account with admin privileges to avoid any issues.
Using the fast user switching takes a LOT of resources, because it is in effect maintaining 2 full and separate Windows sessions including any open applications each user has in their session. If you still have problems, make sure you have EVERYTHING except UO closed in each session. This includes lurking programs in the lower right tray area that are memory resident but don't actually look "open" such as QuickTime movie player, etc. Those are safe to right click and exit to free up some precious RAM and can make a difference on a taxed system. You only need the sessions to be open long enough to make your house transfer.
-Skylark