I too am a sufferer of the "unmountable_boot_volume problem similar to presented by "flax1984" on 20/11/03 and have followed advice given there through several different MS downloads, BUT my stop numers are different. STOP: 0x000000ED (ox827A2900,0xc000009c,0x00000000,0x00000000) Impossible to enter safe mode and cant see the CD. Downloaded and installed WINXPS1a_EN_PRO_BF.EXE and with Cd in place gets Rocovery Console, I think. Applied CHKDSK, got to about 54% then told "The volume appears to contain one or more unrecoverable problems. Bootcfg gives "failed.... currupt files" Where do I go now to get my file out?