Running winxp-pro , sata hard drives with intel ahci Ok So go to disk properties ....... error checking .. select auto fix ... error message ' needs to run at re-start. re-boot and chkdsk reports ntfs file system, cannot access volume , fails to run and boots into windows Try with window's running ... by -not- checking the 2 tic boxes .. chdsk runs , reports phase 1 - , then phase 2 .. then reports 'cannot complete' stops and closes QQQ how to run disk utilities .. will not run in re-boot mode .. or directly from windows ??? is this caused by the intel -sata disk driver ??