It can be difficult to determine what exactly caused this problem. Bootup failure can be due to a variety of issues to include application faults, hardware failures, loose pin connections or malware infestation. Startup failures that occur before
the OS loader (Ntldr) starts could indicate missing or deleted files, or damage to the hard disk master boot record (MBR), partition table, or boot sector. If a problem occurs during
startup, the system might have incompatible software or drivers, incompatible or improperly configured hardware, or corrupted registry/system files. However, from what you describe, this problem appears to be malware related.
If you cannot bootup
or logon in normal or safe mode
, then your options are limited
If you choose Hiren's, please be aware:
While this collection of tools can be very useful, potential users should note that many of the tools are commercial applications that have not been legally licensed for redistribution, and so download/use/sharing of Hiren's BootCD may be illegal (depending on your legal jurisdiction).
Another option is to create a Bootable CD
These are links to Anti-virus vendors that offer free LiveCD or Rescue CD utilities that are used to boot from for repair of unbootable and damaged systems, rescue data, scan the system for virus infections. Burn it as an image to a disk to get a bootable CD. All (except Avira) are in the ISO Image
file format. Avira uses an EXE that has built-in CD burning capability.
If you are not sure how to burn an image, please read How to write a CD/DVD image or ISO
. If you need a FREE utility to burn the ISO image, download and use ImgBurn
.Note: In order to use a rescue disk, the boot order must be set to start from the CD-ROM drive. If the CD is not first in the boot order, the computer will attempt to start normally by booting from the hard drive. The boot order is a setting found in the computerís BIOS which runs when it is first powered on. This setting controls the order that the BIOS uses to look for a boot device from which to load the operating system. The default will normally be A:, C:, CD-ROM. Different computers have different ways to enter the BIOS. If you're not sure how to do this, refer to:
If at some point, you are able to boot up but have difficulty running programs, you can try using VIPRE PC Rescue
. This is a utility designed to scan and clean a computer which is so badly infected that most programs cannot run. Virus definitions are included and the program is self-running once executed. All scans include Rootkit Detection. Be sure to print out and follow the instructions provided on the same page for running under Windows or with the Command Line option.