xp not boot vista boot menu

I installed Vista b2 (public) as an upgrade from XP, but can't get back into XP and need to. When I select "Earlier Version of Windows" and hit enter - the screen goes to black and nothing happens. Any ideas?

BCCO1239 wrote:

I installed Vista b2 (public) as an upgrade from XP, but can't get back into XP and need to. When I select "Earlier Version of Windows" and hit enter - the screen goes to black and nothing happens. Any ideas?

Did you install Vista as an upgrade to XP or a clean install to a new partition.
Charlie

Installed as upgrade.
"Charlie Drake" wrote:

BCCO1239 wrote: I installed Vista b2 (public) as an upgrade from XP, but can't get back into XP and need to. When I select "Earlier Version of Windows" and hit enter - the screen goes to black and nothing happens. Any ideas?
Did you install Vista as an upgrade to XP or a clean install to a new partition.
Charlie

Then you overwrote XP with Vista.
Joe
"bcco1239" wrote in message

Installed as upgrade.
"Charlie Drake" wrote:
BCCO1239 wrote: I installed Vista b2 (public) as an upgrade from XP, but can't get back into XP and need to. When I select "Earlier Version of Windows" and hit enter - the screen goes to black and nothing happens. Any ideas?
Did you install Vista as an upgrade to XP or a clean install to a new partition.
Charlie

Ouch. That'll leave a mark. Thanks all.
"Joe727" wrote:

Then you overwrote XP with Vista.
Joe
"bcco1239" wrote in message Installed as upgrade.
"Charlie Drake" wrote:
BCCO1239 wrote: I installed Vista b2 (public) as an upgrade from XP, but can't get back into XP and need to. When I select "Earlier Version of Windows" and hit enter - the screen goes to black and nothing happens. Any ideas?
Did you install Vista as an upgrade to XP or a clean install to a new partition.
Charlie

bcco1239 wrote:

Installed as upgrade.

Then you reformat your drive, then use the XP backup image you made before installing Vista to restore XP, or you unplug the HDD you installed Vista on and plug your original XP HDD back in.
Sorry but it is not possible to undo Vista without reformatting and re-installing XP, says so on the tin and in numerous posts throughout this NG, the Windows Vista Download site does say
"DO NOT INSTALL ON A PRODUCTION PC"
Hope you made backups.
Charlie