Cannot boot Gateway MX6421 after Unmountable Volume Error screen

this may help. just watch the video and folow the directions. good luck.

Please boot from bootable disc and repair the OS.

An unmountable boot volume error suggests that you may have a hard disk failure or at least some corruption to the hard disk which the system uses to boot Windows XP.
To try to resolve this problem you would need to use a specialist boot CD to try to repair the disk errors. One such disk is Hiren's Boot CD which can be downloaded as a CD image file (.ISO) then would need to be burnt on to a blank CD then the computer booted from this CD.
On the initial Hiren's boot menu, select DOS programs, then select Disk tools before selecting HDAT2 to perform the disk repair actions.
HDAT2 can take some time to complete depending on the size of your internal disk drive and the number of bad sectors or other errors encountered - the tool will attempt to repair bad sectors by reading, verifying, writing and re-reading / verifying the data.
If the disk can be recovered, then you may be lucky and the system will be able to boot but otherwise, you may still need to do some further recovery work for the operating system, in which case you may need a Windows install CD or other recovery CD media.

If HDAT2 finds a lot of unrecoverable errors then you should seriously consider replacing the drive - you should be able to recover data from the old drive using other tools on the Hiren's Boot CD, including booting the CD mini-XP environment and using the tools there too.

Hi,

Good day. Regarding your issue, computer hardware wears out over time, it's a fact. Your hard drive works constantly reading and writing data, and this (among other factors) may cause errors on certain parts of your system. If you receive the "unmountable boot volume" error and have an installation disk, you still have a chance to save your system.


1. Insert your XP installation disk into an optical drive and boot up your computer.
2. When you see a welcome screen, hit the R key on your keyboard. This will enter you into recovery mode with a DOS prompt.
3. Now type chkdsk /f or /p and hit Enter. This will launch a utility which will check for errors on your hard drive.
4. After the process is done, type fixboot and hit Enter to repair any damaged boot files which may have become corrupted. When asked to say yes or no, type the Y key on your keyboard.
5. Type exit and press the Enter key to reboot your computer.

Note: other windows version like Vista or Windows 7 have a Repair option once you use the installation disc to fix this problem.

Hope this information help in resolving your issue. Have a great day.

perform 32 bit diags on hdd using drivers disc, if no error, boot your comp using windows disc and perform recovery console, perform chkdsk /p

well this might be the case if the recovery disc is corrupt so if you don't have any important files in the c drive its better to reinstall the OS but before that try the safe mode option while booting the pc.

good luck.

Many times this error occurs when I have swapped a hard drive and used the wrong IDE cable to connect it. If your computer uses an Ultra Direct Memory Access (UDMA) hard disk controller, and you use a standard 40-wire connector cable to connect the UDMA drive, you may experience this error. Make sure you are using the correct IDE cable.

Also, if your BIOS settings are configured to force the faster UDMA modes, this error may occur. In this situation, restart your computer and enter the BIOS and load the "fail-safe" default settings and reboot.

If neither of these issues are the cause for the Unmountable Boot Volume, then the issue most likely is caused by a damaged BOOT.INI file in the root directory of the boot drive or file system corruption.

Follow the steps below to correct these file system issues:

1) Start your computer with your Windows XP CD-ROM, or with Windows XP boot disks
2) When the Welcome to Setup screen appears, press R to Repair the installation using the Recovery Console
3) If you have a dual-boot or multiple-boot computer, select the Windows installation you want to access
4) Type the administrator password when you are prompted, if no administrator password is set then just press Enter
5) At the command prompt, type CHKDSK /R and then press Enter
6) Once CHKDSK has finished checking and repairing the hard drive, type EXIT and press Enter to restart your computer

one cheap way is to purchase a used hdd from a thrift store or a comp shop. install your software on it and plug your old drive as a secondary. this way u can extract all your files off. then reprogram that drive. this should cost $30 at the most for a 30 gig drive

At this point, you can try to clean your disk # 4 and see what happen,
or try to make a copy of disk # 4 (if you can copy the disk) and try again.

or

1) Contact your customer support and ask for a new set of disks.(or only # 4)

or

2) Boot your computer with another OS disk (win XP)

or

3) Boot your computer with some utility disk

Try the link . . . www.laptop-problem-solution.com

For find your best solution.

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