Det är ju lite annorlunda med BIOS på win8, inget mer F2 utan du kan antingen hålla in SHIFT tangenten när du klickar Restart i Shut Down menyn eller så kör du Shutdown.exe /r /o i prompten. Då startar den om med bootmenyn, kolla denna för mer info.
http://www.makeuseof.com/tag/how-to-...ws-8-computer/
Sedan hanterar ju Win8 systemdisken helt annorlunda än tidigare så kan vara värt att testa något av dessa alternativen också.
1. Right click "My Computer" ->goto "Manage"
2. In menu on left side click "Disk Management" under "Storage". This may take few moments to initialize
3. Now you will see a detailed list of your partitions on the Hard Drive. Here you may note that Either your first partition may have a drive letter or may not
4. Now in case it does not have a drive letter then, right click that partition, goto "Change Drive Letter and Paths", select "Add"
5. In case you have Drive letter already visible then, right click that partition, goto "Properties" -> "Security" -> Add Permissions