What do you mean? They are asking how to switch from Metro to desktop mode, correct?
And in addition to that, is there any way to set desktop mode as the default on startup?
Outside of 3rd party programs (Stardock's Start8 does this), no, there is no way to make it desktop mode on default.
I've used Windows 8 for awhile now and yeah, Metro seems awful for the business consumer, but outside of that, it works pretty well for home use. You have simplified "apps" for those people who like it, and for those who don't, it's really no effort to click the Desktop app and get to basically Windows 7 + slight enhancements. The app store is currently pretty barren, kinda obvious they rushed it, but I'm sure it'd get better in time. Also, the extremely fasat boot time with Windows 8 with my Solid State drive is well worth the upgrade to me in my book, lol.