> Solution: run Windows in a VM, one machine per account, nuke it from orbit when-not-if something goes awry. Hundreds of hours of frustration prevented from a system that is not even able to have the same UI across all its windows.

Better solution: don't use M$ product, if you can. Despite the efforts and resources Microsoft spends in improving its products, languages, tools, they are just an enterprise company: very expensive buggy products.