A dual boot menu does not slow down a machine. Never has.
But to fix this is a piece of cake and discussed at least weekly in this forum. But be sure you know which to remove from BOOT.INI.
Hint: Type EDIT BOOT.INI into google.com for more detail.
But once you fix that, the machine should still be slow.
Somehow by trying to install an older version of Windows XP over a newer one, due to my newer one being un-genuine i managed to get one of these dual boot things!
This is making my system extremely slow and the graphics are really affected. I know that i can make my computer automatically start up the first one but i really need to completely get rid of the second one so my computer gets back to it's normal self. I've formatted the drive (D:) i don't want but it hasn't made any difference.
Is this possible to do or shall i just wipe my hard drive and start again?