wow, sorry, not intent to call u ignorant at all, just guessing u were not an experienced windows user, which is, obviously not correct.
anyway, msconfig and regedit are normal tricks, and as an experienced user, you should know that using them does not indicate the windows is broken in any ways. Its great way to clean up ur system, safe and effective.
lol, OSX has tricks too

, such as use OnyX to recover ur lost disk space, sometimes GB in size. or repair permissions, repair disks, which are never necessary in windows (unless ur HDD is physically damaged, in which case, OSX's repair disk won't do any good any way)