How do I either make Ubuntu my default OS at start up without having to choose? Or, how do I delete my old operating system? Which option is better?
127894
Windows Boot Manager: Make Ubuntu the default instead of Windows
124303
Remove GRUB and keep a Linux system
31757
How do I remove Windows 7 from my dual boot system with Ubuntu?
157857
How do I boot my PC from GRUB?
28970
How to completely remove and reinstall Ubuntu?
1661
How do I set the default program?
16182
How can I dual boot Windows and Ubuntu?
149945
How can I completely replace Windows XP by installing Ubuntu over it?
918
How to remove Ubuntu and put Windows back on?
18266
How do I completely remove Ubuntu?
121308
How do I get the GRUB menu to show when starting my dual-boot system?
37535
Safest way to remove Ubuntu from dual boot PC
34367
How do I reinstall Ubuntu?
43114
How do I set OS X to boot by default?
13283
Removing GRUB after removing Ubuntu
80287
In setting up dual Boot with Windows and Ubuntu, which OS do I install first?
13154
How to change boot priority?