will not start up on power up

[JRT]

Windows XP Prof.,Power up 1.normal black screen,2.then
safe mode screen,but can not go to safe mode,3.freezes on
blue screen "problem detected windows shut down to prevent
damage etc" unmountable_boot_volume. Not sure why, working
ok

 

[SteveL]

black screen:

http://support.microsoft.com/default.aspx?scid=kb;en-
us;314503&Product=winxp
or

http://support.microsoft.com/default.aspx?scid=kb;en-
us;318031&Product=winxp
or



unmountable_boot_volume:

http://support.microsoft.com/?kbid=297185

 

[Hilary Karp]

See this site:

0x000000ED: UNMOUNTABLE_BOOT_VOLUME
http://aumha.org/win5/kbestop.htm