Windows 7 Bluescreen then report I/0 error at boot?

Question

Been having a problem with my PC for a few months now, sometimes it will crash\freeze completely... then after hard powering down and booting back up it wont get any further than the Bios splash screen. I usually unplug everything inside the PC and reconnect one by one e.g. remove dvd drive, remove second hard drive to try and narrow down whats making it hang. Anyway it usually boots again and I never seem to get a chance to locate the issue. But yesterday it froze whilst playing a game, bluescreened and restarted and then stuck at splash screen. Unplugged the DVD drive, second hard drive, RAM which is fine as I upgraded a few months back and it did it before then.... Graphics card is fine as that was upraded a few months back and it did it before that.... in fact its the whole motherboard has been replaced.... the only original components that are still the same are the two hard drives and an internal card reader. Yesterday it wouldnt boot... stuck on a solid boot screen with hard drive light on solid... I walked out the room for 10 mins or so and came back and it was on a windows boot error screen reporting an I/O error all components - keyboard, mouse all USB's were unplugged and the only thing plugged in was the main internal hard drive, monitor into the graphics card and the internal card reader.... It may be a month or so before it happens again, what would anyone suggest to narrow it down between the master hard drive and the internal card reader?

any advice would be appreciated.

Also done a chkdsk on the hard drive and no bad sectors were found

Answer 1

The problem is likely to be failing Ram, especially if -



- BSODs occur at random, even when the PC is idle.



- the BSOD messages are also random rather than repetitive i.e. you tend to see different messages related to different drivers each time the PC crashes.



- it tends to occur more often (or can be triggered) when the Ram is in heavy use (eg. gaming).



It could also be a failing hard drive, but that's less likely to cause random system lockups. In that case you're more likely see a BSOD being related to a particular activity or software that fails due to unreadable areas on the drive (bad sectors on the drive). However, a hard drive failure may appear just like a Ram failure if areas of the hard drive being used to store the virtual memory are affected by unreadable bad sectors. Failing hard drives also tend to make a clicking noise at times. To rule out a hard drive failure, do a complete error-checking scan of your main drive (usually C:), making sure to select the option to scan for and attempt recovery of bad sectors. If you find bad drive sectors during the scan, your drive may indeed be failing.



To determine if you have failing Ram, you need to download memory testing software... you can get it here-



http://www.memtest.org/



The site provides an ISO of the software, which you will have to burn to a CD. Then you will have to restart your PC with the disc in the tray, making sure to set your PC's Bios to attempt to boot to the CD before booting the hard drive. The software will give you the option to perform various tests on your Ram and it may take hours so you may want to do this overnight. If you have two sticks on Ram in your PC, you should test them one at a time, so that you can determine if only one is failing. But to be honest, if one is failing and they're from the same brand and were installed simultaneously, you should just replace both (there's a good chance the other will fail soon)



One last thing. If you added new hardware to your PC recently, you should uninstall it to see if its driver was causing the problem. Alternately, you could update the drivers for any newly installed device.

Answer 2

>> Unplug and replug your hardware accessories.



>> Scan system for Viruses.



>> Defrag registry using registry clean up tools such as reginout cleaner.



>> run your system in safe mode and type "sfc/scanNow" in command prompt



>> If problem persists, repair Windows.



thanks

Answer 3

well you can go to windows 7 official website to find the answer to this problem.