Actually, HL .... That's because I don't want people asking me to fix their machines outside the office. The office charges even more.
Bish, as a programmer, I'd be looking at $120,000 a year. But solid jobs are all west of here.
Over the top is you keep the existing install and install the new right into the same directory. Windows may keep enough .dll and .ini files intact to allow your old softs to still run. But personally, I don't do that unless there's no other option. Too great a risk of corruption, or hangups later. A fresh start is always the best start.