Question about HP Pavilion dv9812US Notebook

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When i start my pc,it displays operating system not found

When I start my pc, it goes to black screen and then displays operating system not found. What do I do to fix this? I have the recovery disc (3) but I get the error code 0x400110020000100A....help!!!

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Go into the BIOS and see if the hard drive is recognized in there. If it is then try restoring it with the recovery disks. If the error still comes up then that means the hard drive is bad and would need to be replaced. Also if the hard drive is not recognized in the BIOS then that means the hard drive is still bad.

Posted on Apr 23, 2010

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Trying to restore back to factory settings


System Recovery
When you've tried other methods of repairing your
system software (like System Restore or Application
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When necessary, you can reinstall the operating system and
the application software that was originally installed on the
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The System Recovery program uses a special recovery
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NOTE: The System Recovery image is in a partition area
of the hard disk drive and takes up part of the total drive
space. This disk space is not usually available for your use.
In the unlikely event that you replace the hard disk drive,
or somehow damage the data in the special recovery
partition on the hard disk drive, use recovery discs to
reinstall the operating system and software on the hard disk
drive. See "System Recovery Using Recovery Discs."
Make your own recovery discs (CDs or DVDs) before you
need them; see "Creating Recovery CDs/DVDs." You can
also make the Recovery Tools CD. This CD contains utilities
that allow you to make changes to your hard disk drive; see
"Using the Recovery Tools CD."
Starting System Recovery
if the PC Is Responding
1 Turn off the PC. Disconnect all peripheral devices from
the PC except the monitor, the keyboard, and the mouse.
Turn on the PC.
2 Click Start on the taskbar, choose All Programs,
choose PC Help & Tools, and then click Compaq
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3 Wait until the System Recovery window appears asking
Do you really want to start System Recovery?
4 Click Yes to continue with the recovery process. If you
created recovery discs, you may be directed to insert
recovery disc #1. If the Recovery disc is a DVD, be sure
to put the disc in a DVD drive.
5 The PC starts the recovery; wait for the onscreen
instructions to display, and then follow those instructions.
6 Complete the PC startup, finish the registration process,
and wait until you see the desktop. Then, turn off the PC,
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Starting System Recovery if the PC
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1 Turn off the PC. If necessary, press and hold the On
button until the PC turns off.
2 Disconnect all peripheral devices from the PC except the
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3 Press the On button to turn on the PC.
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5 The PC starts the recovery; wait for the onscreen
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Operating system not found


there is problem with your hard disk. your hard disk wire may be loose. try to remove and refix all sata wires of your hard disk. "operating system not found" message may be coming because you may have not installed any os (windows, linux or mac) in your notebook. try to install operating to system to fix this. there may also be proble with your hard disk, your hard disk may be dead. if your notebook is showing message "operating system not found" without any reason then you may have put your notebook in high magnetic field area. due to high magnetic field, sometimes hard disk's are formatted automatically.

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Operating system not found


hi goodner,

getting the error "operating system not found" means that the hard drive where the Operating System is installed (i.e. Windows XP, Windows Vista, Windows 7), Cannot be found by you BIOS upon the boot sequence.

When you turn the PC/Laptop, you normal see a screen that flashes flashes with screen that displays the ff:

Primary Master:
Primary Slave:
Secondary Master:
Secondary Slave:

The Primary master should have a value right next to it. If not, either the hard drive is faulty and needs replacement, cable is loose,

If you have a value to it and stil gets the same error the operating is corrupted and needs to be re-installed.

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Bootmgr missing on hp pavilion slimline s5503w


This document pertains to HP and Compaq desktop PCs that came with Windows 7.The following error opens when attempting to start the PC:BOOTMGR is missingPress CTRL+ALT+DEL to restart the PCIf you recently installed an additional hard drive, turn off the computer and remove the drive before using the following steps:
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    • If you have a recovery disc, turn on the PC and insert the first recovery disc into the drive. Use the disc to enter the system recovery.
  2. Select Microsoft Startup Repair tool and wait for repair to find and fix errors. When finished, restart the computer; even if the startup repair tool finds errors but cannot fix them.
  3. If the error message persists, open the recovery manager screen as was done in step 1.
  4. At the recovery manager screen, press ALT + D.
  5. Enter the following text at the command prompt: bootrec /rebuildbcd
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  9. The error should no longer open. If it does, perform a system recovery, making sure to backup important files.
If you removed a hard drive before using these steps, replace the drive. If the error occurs again, make sure the additional hard drive is not set as an active drive. Only the main bootable drive should be set as active.

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1 Answer

My scre goes black every so often


Your power setting are set to turn off the screen after a set time to change this.

Click on the start menu, Control Panel
From the control panel select power options.
Select Change advanced power settings
Find Display - Turn Off Display After
Adjust the time from the current time to a more suitable time.

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I was never put my file data at system disk. It's mean I always have two partition drive on my computer. So when the system crashes and can't repair, I can free to re-install the system without affecting my data. Base on my experience there is nothing to do than re-install your system. Backup your data first if its placed on system disk with Live operating system that you can found on internet such as SLAX Linux.

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The problem of black screen can also happen in other versions of the Windows. However, the symptoms and effects of the problems in all operating systems are almost same. For instance, when a user starts his Windows, everything goes fine. But when he logs into it there awaits a black screen instead of the normal desktop layout. An average computer user finds it very disturbing and has no clue how to fix Windows 7.
However, the best way to find a solution to this problem is to fix the registry errors in your computer which become the cause of all major Windows errors and crashes. The registry in Windows 7 is a very important component of the entire operating system and it stores information about the Windows settings. If these settings are not adjusted properly then there start to appear strange computer problems such as Windows 7 black screen.
Here are some discrete steps you shall also take besides fixing your Windows 7 registry which is inevitable for safer and stable computing:
* Conduct an antivirus and antimalware scan. Fixing for malwares after a registry scan gives an extra protection to the PC and saves PCs from lots of dangerous infections.
* Start Windows 7 in safe mode and restore your PC/system to the previous date after which you received the Windows 7 updates. It is believed that some updates may be behind these screen issues in Windows 7.
* Adjust your display settings since the wrong settings may also cause the Windows 7 black screen also called the blank screen. You can do this by starting Windows in safe mode.
Follow all the guidelines and start from registry repairing scan for Windows 7 to fix Windows 7 black screen. The best available tool to repair registry and fix PC errors such as this is Reg In Out.

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