This issue may occur if the Isapnp.sys file is damaged or is not present in the path that the error message specifies.
After all, running Windows without a decent anti-virus is like walking through a Red Light District after eating five metric tonnes of Viagra.
What you have to do is figure out a way to make him feel like a moron. I've found that's the best/only way to make people switch.
(or Crossover office, however most Linux fanboys are against it because it's commercial)
It's hard to explain what makes an older guy (my dad is 66) stick with Windows.
ISAPNP.... very strange considering that windows XP dropped support for the ISA bus and so would have absolutely no need for an ISA PNP system.Windows 2000, however would.I guess this is just one more example of how the MSOS is kludged from it's previous versions.