No booting up, file is possibly corrupt

Please I need help. I turned my laptop off and went to turn it back on it would nt boot up.
I am a technophob.
The message that comes up reads "The file is possibly corrupt. The file header checksum does not match the computed checksum.
Please help I need it thankyou in advance
James

Hi rockjedi,
In my opinion you should give us a little bit more details about your notebook and operating system.
What do you think?
Im not sure but I think now its time for reinstalling Windows. You can choose the HDD recovery feature if your notebook does it have or Toshiba recovery disk.

Similar Messages

MacBook pro will not boot up. Blank screen with message File is possibly corrupted. Checksum does not match etc

MacBook Pro suddenly will not boot up. Blank screen with message File is possibly corrupt. Header checksum does not match, etc

Hi s.cheslik,
It seems your MacBook Pro will not boot properly and it displaying an error message. Based on the information you have provided, it appears your MacBook Pro needs to be serviced. The following link should help you get started with the process and has links with additional information on topics such as warranty and service pricing, battery replacement, and express replacement service.
Apple - Support - Service Answer Center
Thank you for contributing to Apple Support Communities.
Take care,
Bobby_D

"The file is possibly corrupt. The file header checksum does not match the computed checksum."

Yesterday evening, I accidentally dropped my Probook 6565b. It bluescreened with strange red boxes around the text, so I thought the screen or something was damaged. I emergency shut down the computer, and started it up again. It was visibly slower, but I was able to use it, so, relieved, I turned it off again and went to bed.
This morning, I tried to turn it on again. It started out normally (and I am able to access the start up screen) . But afterwards, it gives me a blank dark blue screen (like before you see the Windows logo) and it stays there for around 15 seconds before it gives me the error.
I have no idea what to do, so any advice would be greatly appreciated!
I think my operating system is Windows 7, but I'm not sure.
Thank you.

I see you have damaged both your hardrive(hardware) and your operating sytem (corrupted too, software)
You may want to run an diagonstic test of your hard drive complete before trying to reinstall windows.
Press ESC right after power button and repeatdley and look for Diagnostic test and start up test and hard drive test.
Please report results.
Sorry because of different timezone I might not be able to help/reply you right away.IF that happens I deeply apologize!
**Click the White thumb if you like the answer.**
**Please mark Accept As Solution if it solves your problem and only solves your problem, if you have any more questions please ask, this also helps others to solve related issues.**
Feel yourself like home here, we are all happy to help, if you have an question reply or start a topic or pm me or an expert.

I always get the following error msg when trying to update add-ons "Invalid file hash (possible download corruption) -261"

I get the following error msg when I try to update add-ons ...
ErrorFirefox could not install the file at
http://releases.mozilla.org/pub/mozilla.org/addons/1865/adblock_plus-1.2.2-fx+sm+tb+fn.xpi
because: Invalid file hash (possible download corruption)
-261
Why, and is there a solution. Im fully patched on osx.
+ Fredrik

* "Clear the Cache": Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
* "Remove the Cookies" from sites causing problems: Firefox > Preferences > Privacy > Cookies: "Show Cookies"
You can also try to enable third-party cookies<br />
Firefox > Preferences > Privacy > Cookies: [X] "Accept third-party cookies"
See [[Disabling third party cookies]] (you need to enable)

Possibly Corrupt Catalog .Dat Files - A Serious Problem?

This question continues from http://forums.adobe.com/thread/804620?tstart=-1.
The three .dat files (backupCt.dat, collstatus.dat and tagstatus.dat) in one of our Adobe\Catalog Folders subfolders ("Paintings") may be corrupted. Whereas these files appear to be rewritten routinely, along with the thumb.5.cache file, each time Adobe Photoshop Elements is opened to one or another of our catalogs, the three files have not been rewritten for the Paintings catalog since 3/9/11, although that catalog has been opened almost every day. This situation came to my attention because the three files showed up in error messages in the Second Copy backup program I run every night, saying that the three files could not be copied because access is denied. In my previous post (referenced above), MichelBParis suggested that I could delete those files safely and that they would be rewritten when the catalog was next opened. However, I can't delete the files, rename them, or move them elsewhere because of the access denied status (I get an error message asking me to be sure that the disk is not full or write protected [which it is not] and that the files are not currently in use [which they are not, at least as far as I can tell -- Adobe Photoshop Elements has been closed when I have attempted all procedures, and I don't see any other applications or processes running, as per Task Manager, that I can immediately identify as belonging to Adobe). I have thought about restarting the computer in Safe Mode to see if I can delete the files then. However, I am a bit nervous about trying this, as the Paintings catalog in question is huge and of enormous importance to my wife -- I don't want to do something that might inadvertently make it impossible to access or use that catalog (as happened to us once before when we were using Adobe Photoshop Album Starter Edition 3.2, and the catalog became corrupted).
My questions:
(1) Does anyone know what these three .dat files actually do? I've not so far been able to find this information via Google.
(2) If these files remain in their present state (access denied and non-rewritten), do we run the risk of ending up with a serious problem down the road and loss of our ability to access the catalog (or some other loss of functionality)?
(3) Would it be safe for me in fact to delete these three files if I can find a way to do so (e.g., in Safe Mode)?
(4) If it would, indeed, be safe for me to delete the files, and if that would seem to be a next step to try, are there any suggestions for how I could go about doing so?
(5) Any other suggestions about how I can get the Paintings catalog back in proper shape?
Thanks for any help anyone can provide!

Most likely the files are not corrupt if your basis is that the backup program cannot open the files. However, I would be concerned about the security settings in the files if multiple users need to access the same catalog. This might be why you aren't seeing any changes to the time/date because one of the user doesn't have rights to modify the file.
Please tell me what OS you are running and what version of PsE?
For PsE 9 (and I think 8), you can modify the media-analysis options from the Organizer...
Menu 'Edit->Preferences->Media-Analysis'
Uncheck either checkbox as shown in the red circles
After hitting 'OK', exit the organzier and reboot.
See if you can access the .Dat files.
Instead of copying the catalog, I would just create a new empty catalog. This can be done as follows...
Menu 'File->Catalog...'
Make sure you note where the current catalog is located before you continue. The name of the current catalog is found in the box at the bottom of the dialog with [Current] added to the end of the name. Now...
Click on 'New...'
Enter the new catalog name.
Click on 'OK'
The organizer will use the new catalog. You will now see nothing is in the organzier.
See if you can access the .dat files. You may need to reboot.
You can select the previous catalog as follows...
Menu 'File->Catalog...'
Click on the previous catalog name
Click 'Open'
There is something not right with the security settings especially if you want multiple users to be able and access the catalog. As far as how things got messed up -- I have no idea. Some possible options are that one user has more rights than another user. The one with more rights created the files just fine but the other user has no way to read the files. Or someone was messing with the security settings.
Security settings in Windows can get very complex very fast. I hesitate attempting to walk through this can be done because there could be many factors which has caused this issue. You could have specific security settings on the files which override parent directory security settings. Or the parent directory security setting could simply be wrong.
You first need to determine if both users need write access to the catalog. If this is the case and they are not administrators, I would go ahead and set the security settings on the folder containing the catalog. You do need to be careful so you don't remove security settings such that you cannot even make changes to the security settings. Make sure you give full control to "This folder, subfolders, and files" in the Permission Entry dialog.
I would encourage you to look at the effective permissions on all files in the catalog after making any changes and before you start up PsE again. I have no idea what would happen if the security setting was wrong on a single file. This could cause a corrupted catalog depending on how PsE is written.

Recovering a possibly corrupted .bbb file

Hi All,
Hopefully someone can assist me with this problem.
I'm using DM 7.0.0.59 and created a backup of my BB9700 with OS 6 2921. When I tried to restore from backup, it is saying that "The selected backup file might be corrupted". Is there a way of recovering or fixing this issue?
Thansk.

Can you tell us more about what happened during the process of updating? Did you get any errors? There are 3rd party apps out there that can still read corrupted BBB backups, but it might encounter difficulty at some point due to the fact that the backup is corrupted. Try using the free version of Blackberry Backup Extractor and see if the software can read your backup, it should be possible and you should be able to extract your data inside.

I have a damaged disk and after talking to Apple Support I know I need to wipe my hard drive. I want to save as many of my files as possible, I have an external hard drive and when I boot in recovery HD, I can see my files, just not sure how to transfer.

I'm currently running Lion OSX, and I've already tried repairing the disk multiple times. At this point I really just want to rescue as much of my files as possible.
Thanks!

Is there any critical data on the external drive? If not, partition it so there is enough room for the operating system and a recovery tool that you buy from the store on one partition, and enough to completely recover the contents of the internal drive. Partitioning is described here:
http://docs.info.apple.com/article.html?artnum=61301
In the options section of the partition tab, be sure to select GUID for both partitions after selecting them. Once done, install the operating system on the first partition, and then install the recovery tool on it. Finally run the recovery tool to exttact the info to the second partition.

Macbook pro won't boot and when I tried to back up the hard drive I got "disk utility can't repair this disk backup as many of your files as possible"

My macbook pro froze and initially would not even recognize the power chord. Now it charges, but will not load up. I opened in in disk utility to try and back it up so that I could take it to apple to have it fixed but I got the message that said "disk utility can't repair this disk backup as many of your files as possible". How do I back up the files???

Nichelle215,
you can try the method described on this Apple page, in the “Instructions for backing up to an external hard disk via Disk Utility” section. (You can skip step 6, since you already know that your disk is irreparable.) Note, however, that this method is not guaranteed to work. Once you get your disk straightened out, you might consider purchasing an external hard disk for use as a Time Machine backup destination, so that a similar problem in the future won’t wipe out the only copy of your files.

Try to open a possible corrupted PPT file

Does Microsoft have any tool to repair a corrupted PPT file? Do I have to use the 3rd party recover tool to fix the problem?
I tried to insert a slide from PPT file but did not find that option available when I attempted to open the corrupted PPT file.
Thanks.

Hi,
Which Office version did you use? Is it a password-protected file? Was the file sent to you as an e-mail attachment?
If your file is truly corrupt, there are a number of things you can try to recover it.
Use Slides from Files on the Insert menu.
Locate a TMP file.
Open the presentation in Microsoft Office Word.
Move the file to a different place.
Open the file in a different way.
Use Safe Mode.
Use Damaged Presentations Troubleshooters.
Try a third-party recovery tool.
More reference:
http://office.microsoft.com/en-us/powerpoint-help/recover-a-corrupt-powerpoint-file-HA001116878.aspx
http://www.presentermedia.com/blog/2012/08/i-cant-open-a-powerpoint-presentation-in-2010/
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
Regards,
George Zhao
TechNet Community Support

Can't listen to an entire song in Itunes. Randomly just skips the song in different places while it's playing. Song file is not corrupted - even doing it on a new song I just bought from Itunes today. Help :(

I just bought a new laptop and transferred over all of the songs. But I checked the ones that skip in Itunes in another music player and they work fine there - the files are not corrupted - and like I said, even a brand new song I just bought skips. The priority for Itunes is set to High. This comptuer has very high specs (it's a Lenovo IdeaPad) and the processing performance never even goes above 10%. I am a Disc Jockey and this is a severe problem. Please help...
If downgrading to a previous version of Itunes is the answer, how do I go about doing that? I'm currently running 10.5

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of this exercise is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
*Note: If FileVault is enabled under Mac OS X 10.7 or later, you can’t boot in safe mode.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem(s)?
After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

Is there any way to recover files on a corrupted drive if I can book to Lion Recovery Assistant?

Is there anyway to recover files from a corrupted drive if I can boot to the on-disk Lion Recovery Assistant? Unfortunately Apple replaced my screen in December and wiped my hard drive. I restored my files from Time Machine but have not done a backup since December because Time Machine sees the computer as new. I started trying to find a way to reconnect to the existing backup with hopes of not having to do a full back up all over again. There are a number of files that I need from the last 2 months.
My mid-2009 17" MacBook Pro froze last night and I had to press the power button to turn it off. When the computer restarted, it boot into Lion Recovery Assistant. Disk Utility reported errors like "invalid b-tree node size" and "invalid record count".
- I restarted and ran fsck overnight. This morning I looked at the computer and it said that the drive could not be repaired.
- Genius Bar did a quick scan and said I needed a new hard drive.
- I called Apple Care and they had me start in Lion Recovery Assistant and run Disk Utility. Disk Utility again reported that the drive cannot be repaired.
- I tried using target disk mode and connected the MacBook to my iMac. The iMac can see the drive in Disk Utility but cannot mount it.
- I tried DiskWarrior from the iMac and it cannot rebuild the drive. It does not even attempt.
- I tried the demo of Data Rescue and it could not read the drive (using target disk mode).
I realized that if I can boot the computer to the Lion Recovery Assistant then the drive is still functional (corrupted but still functional). Disk Utility shows the custom name I assigned to the partition (I changed it from Macintosh HD).
Any suggestions?

I was finally able to recover my data using DiskWarrior!
After taking my laptop to a data recovery company and quoted $449 to recover my data, I decided to try one more time. The technician did a free diagnosis and said the drive was still functional. I explained everything that I tried. He said that they normally use Data Rescue and recommended that I wait a few minutes after starting the application before attempting to scan.
Using another computer, I installed Lion to a 16GB flash drive and installed DiskWarrior, Data Rescue, and Remo Recover. Remo Recover ran the day before for more than 24 hours and although it "saw" the data, the it only presented a fraction of the data I needed. I booted my laptop from the flash drive and first tried Data Rescue Demo. It estimated 3500 hours to scan a 500GB drive. That worked out to be about 145 days. I cancelled and tried DiskWarrior hoping that since I had purchased it, I would get some value. This time DiskWarror did the scan and in less than 90 minutes it found pretty much everything! It seems that it does not run properly with highly corrupted drives using target disk mode. At the end of the scan, it mounted my internal drive so that I could preview the rebuilt directories and copy what I needed to an external drive!

Can I fix a disk with this message?-Disk Utility can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.

Can I fix a disk with this message?
Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.

Some problems can indeed be fixed this way. But working from Recovery_HD or Disk Warrior DVDs and working in the restricted environment those provide can be difficult. You can literally spend days working on this problem (while your regular work is unavailable) only to discover the old drive is unsalvageable.
There is no way to know up front whether you are facing a major Hardware failure or a minor software glitch, or something in between. Often you are forced to work from the drive you no longer trust. I continue to recommend you do this work from a different, fully functioning Mac OS X booted from a different drive.
If you have had the foresight to (as The hatter often recommends) clone your virgin install onto another drive for use in such situations, you will be able to recover from such problems in record time. If not, my previous recommendations stands:
Buy a new Drive. Or two. Install Mac OS X from scratch on a new drive, and get your Mac running again. Later, you can use the full power of Mac OS X to attempt to rescue your data, if needed. Then Zero the old drive, to see if it can hold data again reliably.
If the old drive eventually provides some needed data, and is salvageable, Merry Christmas.

Disk utility can't repair the Macintosh HD, asking toback up all files as possible? and how to reformat the disk?

disk utility can't repair the Macintosh HD, asking toback up all files as possible? and how to reformat the disk?

Some problems can indeed be fixed this way. But working from Recovery_HD or Disk Warrior DVDs and working in the restricted environment those provide can be difficult. You can literally spend days working on this problem (while your regular work is unavailable) only to discover the old drive is unsalvageable.
There is no way to know up front whether you are facing a major Hardware failure or a minor software glitch, or something in between. Often you are forced to work from the drive you no longer trust. I continue to recommend you do this work from a different, fully functioning Mac OS X booted from a different drive.
If you have had the foresight to (as The hatter often recommends) clone your virgin install onto another drive for use in such situations, you will be able to recover from such problems in record time. If not, my previous recommendations stands:
Buy a new Drive. Or two. Install Mac OS X from scratch on a new drive, and get your Mac running again. Later, you can use the full power of Mac OS X to attempt to rescue your data, if needed. Then Zero the old drive, to see if it can hold data again reliably.
If the old drive eventually provides some needed data, and is salvageable, Merry Christmas.

Illustrator files containing graphs corrupt and will not open after saving

I have created a series of graphs in illustrator and after saving when I try to reopen them, I get the following error message:
Can't open the illustration. The illustration contains an illegal operand. Offending operator: 1#INF
This happens whatever format the file is saved in.
I am using CC.
Any ideas why and how to prevent it happening in the future?

vnqaa,
If you are saving elsewhere than your own harddisk, that may be the cause. Otherwise, something else has obviously corrupted the files, possibly related to graphs.
One thing often tried first is to create a new document and File>Place the corrupted one to see how much may be rescued that way.
Here is a website where you can see whether it can rescue the file, and if it can, you may pay for a subscription to have it done,
http://www.recoverytoolbox.com/buy_illustrator.html
and another similar website,
http://markzware.com/adobe-software/fix-illustrator-file-unknown-error -occurred-pdf2dtp-file-recovery/
As far as I remember, the former is for Win and the latter for Mac.
Here are a few pages about struggling with it yourself:
http://daxxter.wordpress.com/2009/04/16/how-to-recover-a-corrupted-ill ustrator-ai-file/
http://helpx.adobe.com/illustrator/kb/troubleshoot-damaged-illustrator -files.html
http://kb2.adobe.com/cps/500/cpsid_50032.html
http://kb2.adobe.com/cps/500/cpsid_50031.html

Oracle Linux 6 - boot.iso file.

I just downloaded oracle linux 6 - 64b, DVD image, but there's no boot.iso file in /images directory.
Unfortunatelly I hardly need this file for fresh install, because our HP server has only virtual CD drive connected
via iLO console, so standard installation is possible from CD images or via boot.iso mounted as CD + network install
I haven't found boot.iso on edelivery.oracle.com\linux.
Any idea pls ?

Preparing the system for an install from hard disk is pretty simple. First do a (minimal) install of EL5. Make sure to review the partitioning, reduce the size of the lvm partition by about 5GB, and add a 5GB partition at the end of the device. Let's assume the iso file is called ol6.iso and the last partition is sda3. Then do:
mkfs.ext3 /dev/sda3
mount /dev/sda3 /mnt
cd /mnt
wget http://.../ol6.iso
mkdir iso
mkdir images
mount -o loop,ro ol6.iso iso
cp iso/images/install.img images
cp iso/isolinux/vmlinuz /boot
cp iso/isolinux/initrd.img /boot
cd /
umount /mnt/iso
umount /mnt
cat >>/boot/grub/grub.conf <<EOF
title install ol6
    root (hd0,0)
    kernel /vmlinuz askmethod
    initrd /initrd.img
EOFYou need to select custom partitioning for the OL6 installation, and make sure not to delete sda3. Once the installation is done, you can delete the extra partition, or use it for swap or something else.

No booting up, file is possibly corrupt

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