Operation System Not Found?
May 15, 2012
At the startup of my computer. I get a black screen with white text saying "Operation System Not Found" it is "OPERATION" and not "OPERATING". I first found this problem after a windows update. Its not an issue getting into my computer since all I have to do is hit the enter button on the keyboard and the laptop acts like nothing happened. Whats going on? Its a little annoying getting this message, and it some what scares me that something will happen to my computer. I feel like the startup is a bit slower, but nothing major.
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Jun 28, 2011
I have a HP dv9920us. A month ago I upgraded to win7 from vista. Everything was working fine until a couple of days ago when returning from work I found a black screen and an error message " no operating system found". No attention paid since I thought that my hdd went bad. So got a new one installed it but got the same message. So went into BIOS and saw that no hdd was detected. My laptop has 2 sata ports so I changed port and to my relive BIOS recognized my hdd in this 2nd port leading me to believe that the first port had gone bad. I did a clean win7 install. Everything went fine. Installed drivers etc no problem. During the first boot after and right after the post message the laptop just suddenly shut down and rebooted and then shut down again just after the post message. This loop went on for a couple of times and finally ended to a black screen with the message " no operating system found". Checked the BIOS again and the hdd was there. Booted the machine with the installation dvd in the drive this time and after the same loop for a couple of times (boot-post message- shut down- reboot ) instead of going to the no "operating system found" it continued and loaded win7. I've performed every possible test that I know for checking memory, hdd etc and everything looks good. The bottom line is that now the only way that I can use my laptop is to boot it with the installation disc in and it loads and works perfectly. If I try to boot it without the disc I end up with the "no operating system found".
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Sep 14, 2012
as usual I turned off my laptop and after a while a turned on again to use my laptop but it couldn't reach operating system and showed error : " OPERATING SYSTEM NOT FOUND" !
I tried all instructions to solve the problem and finally run by windows start up CD to re-install new windows. this time I faced error: " No drivers were found. click load driver to provide a mass storage driver for installation"
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Mar 30, 2011
laptop says missing operation system
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May 2, 2012
i have a windows server 2003 which is runing on the main server. it has one hard drive installed on it, i want to add a hard drive on it which should mirror with the old hard drive. what do i do?
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Aug 6, 2011
I got this laptop and when I turn it on all it says is Missing operatingsystem.....what do I do?
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Jan 4, 2010
Occasionally (becoming more frequent) I get the error message saying "A Process or thread crucial to to system operation has unexpectedly exited or been terminated" I have no idea what the cause is.
This is in Windows 7 64 bit, does anyone know what the cause is?
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Nov 9, 2011
I tried to restore my laptop to factory default today and i must have clicked the wrong option because it deleted my Hard Disk. now when i try to start it it says Operating system not found. Is there any way i can fix this? Oh and i have Windows 7 Starter edition, and its a Toshiba notebook laptop
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Dec 11, 2011
This morning my computer, Sony Vaio, was working perfectly. I turned it off and after a couple of hours put it back on, to get to my surprise the following message " OPERATING SYSTEM NOT FOUND".Is it possible to recover my information still?
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Jan 22, 2012
My computer was on this evening, all of a sudden it went off saying no operating system found. What can I do to fix this?
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Sep 23, 2012
the boot manager was missing for my dell inspiron n4030 so i put the windows 7 repair disk in but when i start it it doesn't have any operating system listed
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Nov 23, 2012
Basically I loaded up my Sony Vaio PCG-71811M laptop and it just has a black screen with 'operating system not found) I clicked F2 for the utility help to see what it said about the HDD. It doesn't say 'HDD not found, all it says is '0GB'. Really worried because all my university work is on there
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Feb 20, 2011
I dropped my acer extensa 5235 from 1.5ft it landed flat. But now when i turn it on it says "operating system not found". Ive been searching everywhere for a solution but have not one. I do not have my windows 7 install disk as it was already pre-installed but i do have the windows 7 iso on a usb-stick. But when i go to install from the usb and choose custom install it starts to "Copy Window Files" but stays at 0% then an error comes up and says "Windows Setup could not reinitialize the deployment engine. To install Windows, restart the installation." ive tried to restart the installation but always comes up with same error?
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Jan 29, 2012
My laptop is a HP Pavilion dv6500 (dv6647cl) just crashed randomly during basic internet browsing. I turned it back on and I get the Operating System Not Found error. In the BIOS I do not see the hard drive recognized. I connected the hard drive to a different computer and it is recognized and it appears as though nothing is wrong with the drive. Is it safe to say that internally the SATA controller is dead? Will edit after running diagnostics and sector tests on the drive.
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Mar 25, 2012
I've had a problem with my ACER Laptop, and I need help fixing this Black Screen Of Death. I started up my laptop today, and BOOM! An error popped up and I have no absolute idea how to fix it. [code]
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Aug 31, 2012
My sony vaio is about 2 years old with a Windows 7 64 operating system. I changed the hard drive to a 500GB Toshiba. When I turned the computer back on it said "Operating system not found". I was told to turn off my computer and then restart while pressing F2. The new hard drive showed up on the screen. Then I restarted the computer again while pressing F10 but it says "Operating system not found".
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Dec 27, 2012
I have a Sony Vaio VPC-EC2TFX/WI, Have tried rebooting several times with no change.This computer was working fine last night and when I tried to turn it on this morning, I got the Operating System Not Found message
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Oct 29, 2012
My boss' laptop needed fixing. Its a Sony Vaio (VPCEE21FX). I boot it on and after post I get the 'Operating System not found' message. So I grab my handy dandy windows 7 disk. Boot it from that and get the installation going. It was on the "Expanding Files" part. Now at the same time I was restoring an old xp machine so my eyes weren't glued to the laptop's screen. I looked over and the laptop was off! I checked the power cord it was plugged and everything. I booted it back up and I get 'BOOTMgR is missing press ctrl alt dlt to restart'. I can't access bios or boot menu. I've been restarting it while press f1 f8 f12 and Del, as those are the known keys, but nothing. What do I do?
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Dec 16, 2011
i am using sony vaio VPCW21S1E and suddenly the display disappear and the monitor turns to black and have message written operating system not found.
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Mar 19, 2012
No operating system found
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Jan 18, 2013
Last day when i was watching a movie in my vaio laptop. It crashed and when it restarts it shows a message 'OPERATING SYSTEM NOT FOUND'
when i go into bois menu there shows no Hdd PRESENT.I have all recovery disks of my sony vaio.
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Oct 4, 2012
aptop its saying operating system not found (Acer Laptop)Windows 7/Vistai checked the hard rive inside if it was find, it was kind of dusty but when i cleaned it after it doesn't still works
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Oct 11, 2010
i was trying to recover my system by pressing F10 key (VAIO recovery system) as soon as it began i cancelled it out. now when i start my laptop it says no operating system can be found immediately after the logo of VAIO appears.... how can i get it of this problem (My DVD rom is also not working)
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Sep 15, 2011
I'm been working on this problem for over a day now and now I'm stumped.I've read dozens of threads and blogs all over the internet concerning this "operating system not found" problem but none of their problems seem to be the problem that I have.My computer just got extremely laggy and froze into a BSOD (blue screen of death) before turning off and showing me the "operating system not found" message during every boot.Usually when this problem showed up, it turned out to be a hard drive failure, but when I checked my bios, it listed my hard drive as 320gb. (So I'm guessing this has nothing or little to do with my hard drive.)
Here are the things I have tried: Safe modesThe "Launch Startup Repair" (ends up with at start up background and doesn't progress any further)The "Windows Memory Diagnostic""Last Known Good configuration"I've transfered the windows 7 .iso to a bootable usb and started up the laptop it got to the Install Now window and when I press that, the window closes and it shows "setup starting" and just stays like that.The only part that seems to be working like it's supposed to is the quick start/splashtop browser option that doesn't startup anything. (It only opens a browser for internet use and no other programs).I'm guessing the next step should be to open up my laptop and see if any of the cables are loose.ut after that I don't know what else I could do.
Edit- I have just checked and now the operating system not found message doesn't show up. when I start up with regular settings, it just gets to a blue screen and restarts.
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Nov 7, 2012
My son started having an issue with his custom PC after he overclocked the cpu. After he overclocked the machine it lost the OS. You'd turn on the machine and "No Operating System Found" is all that would display.I tried to reload Windows after changing the BIOS to load from the DVD first. All it would do is say "Windows is loading files", then say, "Starting Windows", then go right back to loading files. Just kept looping. So, I pulled out the hard drive and put in another hard drive from my PC to see if it would run...
I can turn on the PC using the power button but there is no display and the power button LED is not eliminated like normal. Also, I can not power down the PC with the power button. I have to switch the PSU off. I made sure all the connections to the mobo and psu were tight. The mobo led is eliminated. All fans are running. The hard drive is being accessed CD/DVD is working Reset the CMOS battery (took it out put it back in). I don't know what to do next.
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Oct 15, 2011
I have a system image that was saved to a maxtor one touch ext HD via USB. This was created using Windows 7 image making system. I am trying to copy the image to my new HDD (internal) 1TB. The problem is when I go to recovery>advanced options>restore from image and reboot, the PC cannot find the image. I can click advanced options and search for a driver and actually see the drive and the image folder/zips but Windows 7 cannot detect it. I have also copied this image to a internall HDD because I thought it may be the USB. I have not changed any BIOS settings as I am using Windows 7 on the 1TB HDD and trying to restore to that from either the Dnetouch or the F:internal HDD. Neither times will it find the image.uestions. Do I need to use an alternate program like paragon or clonezilla2. When the image is saved, it is the name of my pc. Example: Fesktop64-PC. Does it need to be in a folder or the image be a specific name? Ive seen WindowsImageBackup as a possiblity.
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Feb 8, 2012
Yesterday, my computer crashed. I tried to restart, but after the BIOS screen, it just goes black, and has a flashing '_' in the top left corner. So I put in the reinstallation CD to try to repair the computer. I do everything necessary to bring up the System Recovery tool, but in the box that lists the Operating System to repair, it doesn't list any. So I clicked on Load Drivers, as it instructs, to find the hard drive drivers, and I CAN SEE MY C DRIVE in the dialog box. I am able to browse it and everything (Windows, Program Files, My Documents, everything). So my computer recognizes the hard drive and everything, it just says that there is no OS installed. I can't run System Restore or anything. how to "find" the operating system? Could something have happened in the registry that I could go edit?
I have tried so many things through the command prompt, but nothing works.
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Feb 7, 2011
It seems like every other restart I get that error on boot up. Why is it off and on?
I ran a repair disc (startup repair), I did a memory diagnostic test, and a restore from a month earlier, and still I get this error. Dont have a Win 7 disc, so don't want to do a clean install yet.
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Dec 8, 2010
My computer fell a couple days ago, and I had to get a new hard drive. nfortunately, my mother let my uncle who is NOT a professional install a "new" hard drive, which was actually his old one and came with Linux and not Windows. It worked fine but I wanted Windows, so he did something and installed Windows 7 from a flash drive. And it was great. Until this afternoon, when I accidentally changed the BIOS order and now I'm getting an "operating system not found" message... Is there something wrong with the hard drive (again, it isn't new) or did I just completely mess something up?
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Oct 26, 2011
I woke up this morning to find OPERATING SYSTEM NOT FOUND with a black screen.It also made sounds like the the disk drive was kicking in.I restarted my laptop and it started and fingers crossed it's still working and i'm doing a virus check as i type.
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Aug 15, 2011
my computer crashed last night and when I have tried to switch it on since it gives me the above message.I have tried entering setup by pressing F2 and changing the hard disk to be the primary boot device, but the same thing occurs.I have created a Windows 7 32-Bit recovery disk by downloading the iso file on my dad's pc and burning that to a dvd. I am able to load this, but when it first starts up it has a table supposed to list operating systems but it is blank and I cannor select anything. It says if my operating system isn't listed, "click load drivers and install drivers for your hard disks" but I don't know where on earth these are located and neither does google seem to.then working through the option on the menu:
-if I click start-up repair it tells me "startup repair cannot repair this computer automatically"
-if I click system restore I get an error message saying I must specify which windows installation to restore
-if I click system image recover it gives me an error message saying "windows cannot find a system image on this computer" and if I try to select one none appear.
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