Hard Drive Boot Sector Reading Error Virus
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unused funds will be donated to the Electronic Frontier Foundation (EFF). If you accept cookies from this site, you will only be shown this dialog once!You can press escape or click on the X to close this box. Register a free account to unlock additional features at BleepingComputer.com Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site. Click here to Register a free account now! or read our Welcome Guide to learn how to use this site. Hard drive failure critical error Started by Vick Broo , Mar 23 2011 06:54 AM Page 1 of 3 1 2 3 Next Please log in to reply 36 replies to this topic #1 Vick Broo Vick Broo Members 3 posts OFFLINE Local time:12:04 PM Posted 23 March 2011 - 06:54 AM Hi! I have a problem with my computer. I've red an other topic (but I can't find it anymore) and it seems to mee that I have a virus. I can not acces any files or programs. After starting I get Windows recovery which I've never seen before (cou
Gaming Smartphones Tablets Windows 8 PSUs Android Your question Get the answer Tom's Hardware>Forum>Storage>Solution for "A disk read error occurred."> Closed Solution for "A disk read error occurred." Tags: Hard Drives Disk Read Error Storage Last response: 2 April 2011 22:05 in Storage Share pbarney 17 June 2009 22:13:43 This is one of the most frustrating error messages you can ever deal with. Sometimes the fix is simple, sometimes it's a complete pain. Having recently dealt with this again, I thought I'd post my thoughts in the hopes that it helps someone else out there. So you receive the dreaded "a disk read error occurred. Press Ctrl+Alt+Del to restart". http://www.bleepingcomputer.com/forums/t/386590/hard-drive-failure-critical-error/ Multiple restarts result in the same error message. If you put your drive into another computer, or connecting it as a slave on your own computer, it will typically work fine, and no data is missing. Because this error is not usually associated with data loss, DO NOT RE-PARTITION THE DRIVE. Your data is likely safe and sound. Here's how we'll recover your data. Try each step below, in order, and see http://www.tomshardware.com/forum/250364-32-solution-disk-read-error-occurred if your drive becomes accessible after each step. In my experience, you won't start seeing results until step 5 or so. 1. Run CHKDSK /R /P from the recovery console (it will typically find no error) 2. run FIXBOOT from recovery console (typically has no result) 3. run FIXMBR from recovery console (typically has no result) 4. Run the manufacturer's diagnostic utility, downloaded from their website (it will typically find no error) 5. Changing the drives from cable select to Master/Slave may fix it. 6. Replacing the data cable may fix it, but usually not. 7. Setting the BIOS to use defaults may fix it, but usually not. 8. Changing the BIOS drive settings from auto to user-specified, ensuring that LBA is selected may fix it. 9. Pulling the CMOS battery to let the BIOS lose it settings may work. At this point, you may be feeling some frustration. :-) If all that fails, here's what will usually work: Ghost your data to a new drive, and use the original one as a slave. It will work. And all of your data will still be accessible. Your computer should boot normally. If it doesn't, or it there are errors, run the Repair Installation option from your Windows boot CD. But why d
The MBR is the Master Boot Record – it is stored on your hard drive but kept outside of Windows partitions and volumes. Crucially, http://techlogon.com/2012/01/15/how-to-check-for-and-fix-mbr-virus-infection/ the code in the MBR is run as your computer starts http://cleanbytes.net/the-new-boot-record-viruses-tdl4-how-to-fix-the-master-boot-record-mbr up (before Windows) which makes it a great place for a virus or rootkit to hide.Even if you reinstall Windows or format your hard drive, a virus infecting the MBR will not be deleted. So, after you reinstall Windows, your computer first runs that same MBR virus hard drive code which then reinfects your new installation of Windows with viruses - and you’re back to square one…In my experience (computer repair business) such infections are becoming ever more common as the MBR is a great place for viruses to avoid detection.Typical Sign of MBR Virus Infection - You still encounter virus activity (e.g. redirected webpages etc) hard drive boot even after you ‘successfully’ removed all viruses (and multiple full virus scans with different antivirus programs found no more viruses).This happens because the MBR virus is hidden outside of Windows so standard antivirus programs cannot find it - as fast as you clean up Windows, the MBR virus reinfects it the next time you restart. For this reason it is really important that after you have removed all viruses from within Windows you check the MBR is virus free - even if you plan to format and reinstall Windows again from scratch.Warning: checking and fixing MBR code is for Advanced users - you should always have a full backup of your important data before trying any MBR fix as there is potential to corrupt partition tables, preventing Windows from loading and possibly losing all data stored on the hard drive!If you suspect a MBR virus you should run several specific MBR checks:1. Avast's Detector - Download Avast’s MBR infection detector aswMBR.exe from here. Follow the instructions on the download
Thoughts Tools & Reviews Selected Software AntiVirus reviews AntiSpyware reviews The new boot record viruses (TDL4) and how to fix the Master Boot Record (MBR) July 23, 2011 by John Barrett · 3 Comments Read Offline:Download PDFDownload ePubDownload mobiComing from the oldest computing times,the boot record viruses remain still one of the most preffered attack vectors. Like their predecessors, the Stoned computer virus(created 1987), Brain(created 1986 and the first PC virus !), Michelangel0(1991), Elk Cloner(1980), actual boot record viruses use the same method of infection: they replace boot record codes with infected code. For who does know what is a boot record Master Boot Record(MBR) or Volume Boot Record(VBR) the advantages of a such infection are obvious. For who does not know about MBR or VBR and their role, here are the details of an Windows PC boot sequence in a simplified form. When the computer is switched ON, the power supply first perform a self-test on voltages, current and stability and if the results passed the test, the CPU loads and execute the BIOS(Basic Input/Output System) code. BIOS performs basic tests on the present hardware, loads if necessary other BIOS routines(for example for video cards) and finally executes Power On Self Test(POST) routines. In these routines the video card is initialized, RAM memory chips, hard drives or other drives(CD-ROM, DVD-ROM, USB devices) are tested and their details displayed and the last step is to read the configuration stored in CMOS memory to see what is the order set for boot devices. If, for example the first boot device is set to DVD-ROM but there is not any DVD inserted, the BIOS will check automatically the second boot device in the order list for a boot record. But if a DVD is inserted, the user is prompted with "Press any key to boot from CD/DVD" message. Also during this boot sequence stage, user can get access to various