get ready to restart your pc for the first time to see windows 10
Speaking of this, there are a bunch of updates which have probably been auto-installed onto your computer which you will not want on there. There's a utility to remove installed updates which should be found under "View installed updates." Search for these ones and you can uninstall them.
KB2952664 (Windows 10 Upgrade preparation)
KB2976978 (Windows 10 Upgrade preparation)
KB2977759 (Windows 10 Upgrade preparation)
KB2990214 (Windows 10 Upgrade preparation)
KB3021917 (Windows 10 Upgrade preparatioon + Telemetry)
KB3022345 (Telemetry)
KB3035583 (Windows 10 upgrade preparation)
KB3068708 (Telemetry)
KB3075249 (Telemetry)
KB3080149 (Telemetry)