No, don't quit worrying. A motherboard changeout involves many, many changes in the Win95 drivers being used, and therefore in the registry. Adding memory or simply changing a CPU while keeping the same motherboard involves virtually no changes to Win95 at all. If a computer owner is changing the motherboard, the system will operate much better (faster and with fewer errors) with a clean Win95 installation on a newly formatted drive, with all applications reinstalled, than if they let Win95 auto-detect the system changes that come with the new motherboard. Roxanne Pierce R2 Systems, San Diego mailto:[log in to unmask] On Wednesday, March 25, 1998 07:32, Tom Turak [SMTP:[log in to unmask]] wrote: > As for the earlier suggestion about re-installing Win95, I am interested in > others opinions. I generally do not xcopy win95 directories, and I don't > put hard disks pre-installed with win95 into new builds. I suppose mobos > and cpus are no different than adding memory as far as the operating system > is concerned, but I worry about what trash may be lingering in an old > system directory from a previous life. Should I quit worrying? > > Tom Turak