Tip & How-To about Computers & Internet

Coping with and avoiding Hard Drive Volume Bit-map Errors

If your computer "locks up" or reboots itself, the problem is frequently lost or corrupted files on your hard drive. Most of the time the problem can be corrected by running chkdsk. However, one of the exceptions is when chkdsk reports that the hard drive has volume bitmap errors.
To run chkdsk, click on Start, All Programs, Accessories and Command Prompt. This will open a "DOS Box" where you can enter DOS commands without the results scrolling off the screen before you can read them. Then key in chkdsk C: (assuming that drive C is the letter of the hard drive where your operating system files and applications programs are stored).
Chkdsk will run in the read-only mode and report (but not repair) problems found on your hard drive. Chkdsk will then ask you to run chkdsk with the F switch to fix the file system. Make a mental note whether or not chkdsk reported any problems with the volume bitmap, then key-in chkdsk C: /F
You will get a message that the drive will be checked (and repaired) on the next system restart.
Enter exit to close the DOS box and the restart your system. Chkdsk will run automatically when your system restarts. If no volume bitmap errors were noted earlier, chkdsk should have repaired the problems with the hard drive. You can verify this by opening another DOS Box and running chkdsk without the /F. However, if bit-map errors were reported initially, chances are they will still be there as chkdsk cannot repair them.
If you still have volume bitmap errors, you can either take your PC to a professional who may be able to repair the volume bitmap with specialized software, or you can back-up all of your data, format the hard drive, and reload the operating system and all applications.
A frequent cause of volume bitmap errors is cloning (copying) a hard drive with more than one partition to another (usually larger) hard drive. The partitions should be sized proportionately on the target drive but sometimes the partition sizes are not reported correctly in the partition table and sometimes in the master boot record.
Avoid cloning drives with multiple partitions, or if you do, immediately run chkdsk on the target drive to check for bit-map errors.

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I have a emachine unplugged it plugged it back in now its telling me to reboot and I can't get my computer to work how can I reboot without disk?


It sounds like your hard drive is not being recognized. I hope you didn't unplug it while it was still turned on as that can cause hard drive corruption. The hard drive or some other critical component may be failing, or just the OS or hard drive corrupted. If you have files that you do not want to lose, you could try this... Pull the hard drive out, and use a "USB Hard Drive Adapter" (available fairly cheap online) to connect the hard drive to a friend's computer, and save all the personal files (documents, pictures, etc.) you can to a folder on the friend's computer or an external hard drive.
Then, you could try to do a Factory Restore on the computer, and if that works, copy your personal files back to your newly restored computer.

Good Luck

Jun 23, 2014 | Computers & Internet

1 Answer

missing or corrupted system 32 wont install off windows xp disk


try going to the bios and change the boot sequence for hard drive to cd
put the copy of xp in the external hard drive and reboot the computer
when it powers up it should boot up off the external hard drive
if that works go to computer --device manager and find recovery section
you may also go restore to a previous date and try for a fix from there
go google and get to microsoft and find that file download for xp and install it
if all that works shut the computer down and reboot back to bios and change back to reboot from hard drive
remove the disc from the external hard drive

Mar 13, 2017 | Compaq Mini 110c-1001NR Notebook

4 Answers

how do you remove corrupt files from your hard disc


By right clicking the mouse to the selected corrupt file, and selecting delete. If it so happen that one of your program has a corrupt file like movie maker or so, you can delete them thru add and remove software. This is how--- Click start, select control panel, then select add or remove program. Now this will display all installed program in your computer. search for the program that does not run anymore, then click remove. Be careful when doing or selecting a program to delete, for windows might need itto run properly. Have a nice day Friend, hope this would help you.

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I have a HP Pavilion dV5t-1000 laptop with a Momentus 5400.4 hard drive. All was working fine until today. The computer is now telling me the hard drive does not exist. I connected it to my custom built PC, and it recognizes the hard drive in the bios but it isn't in my computer in windows vista. Is the hard drive recoverable?


No, the disk doesn't appears in My Computer because the file system on it is completely corrupted - all the data is lost. To see if the hard disk itself is recoverable download, install and run this free program (select the correct disk for testing)
http://www.hdtune.com/files/hdtune_255.exe

Feb 03, 2011 | Seagate Momentus 5400.4 250GB SATA/300...

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