Startup repair for hp pavillion o1710n vista..

How to locate startup repair for hp pavillion o1710n vista. I have no startup disk as the windows restore is on the D partion. getting crash dump when doing scan disk.

Hello chevaliet,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that you are attempting to locate the startup repair for your pavilion o1710n, and I would be happy to assist you in this matter!
Since you are not able to use the RECOVERY on the D Partition, I recommend following this document on Obtaining HP Recovery Discs or an HP USB Recovery Drive. This should help you acquire a recovery disc necessary to replicate a RECOVERY partition.
Please re-post with the results of your troubleshooting, and I look forward to your reply!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Similar Messages

Hp Pavillion Dv7 normal startup/startup repair go to blank blue Hp background Options

I was recently minding my own business on the web when my computer seemed to freeze completely, I clicked a few buttons and then my computer turned itself off out of the blue. I turned it back on and it prompts me with two options, startup as normal, or startup repair, whichever I click has the same end; it goes through the starting windows fine but goes to the Hp blue backdrop screen and it's empty with just a mouse and a window which pops up for around half a second before closing..
I have no disc to re-install, no usb to re-install, no option for safemode, and defiantly no patience.
Any help is needed thanks

I solved this problem today. I tested some of the components and it came down to the HDD. I just bought a new HDD (WD) and replaced the Samsung hdd that came with the notebook. The notebook responds very good now (like before). It seems something on the old hdd was corrupt because further tests (installing XP and Ubuntu) suggested SMART error. I didn't had much time to investigate further on why is this happening. The old hdd works fine on desktop as a secondary hdd.
Most probably if the BIOS had an option to disable SMART the old hdd would of worked just fine. But with this new F23 (updated) BIOS you don't have a lot of options.

Hp Pavillion Dv7 normal startup/startup repair go to blank blue Hp background

I was recently minding my own business on the web when my computer seemed to freeze completely, I clicked a few buttons and then my computer turned itself off out of the blue. I turned it back on and it prompts me with two options, startup as normal, or startup repair, whichever I click has the same end; it goes through the starting windows fine but goes to the Hp blue backdrop screen and it's empty with just a mouse and a window which pops up for around half a second before closing..
I have no disc to re-install, no usb to re-install, no option for safemode, and defiantly no patience.
Any help is needed thanks

Hello mike211,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand you have recently begun having issues with your HP Pavilion p7-1240 Desktop PC waking from sleep/hibernation mode properly. I am providing you with the HP Support document: Resolving Problems with Sleep and Hibernate Modes (Windows 7), which will walk you through troubleshooting your sleep/hibernation mode issue.
Additionally, if the above document does not work since you stated that it has only been going on a couple days I recommend that you review and follow the steps set out in the HP Support document: Using Microsoft System Restore (Windows 7), which will walk you through restoring your system to back a few days to before the issue began.
***NOTE: This will not adversly affect your personal files, but it will affect any applications that you have installed between the day you choose and now as well as any settings you may have changed. The applications will need to be re-installed or settings re-changed.
Please re-post if you require additional support. Thank you for posting this issue on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Windows 7 Pro x64 now BSOD just as it is starting and Startup Repair has failed

As the title says, a few days ago my Windows 7 Pro x64 started to BSOD just as Windows is starting but the error screen disappears immediately.
Startup Repair fails and has Problem Signature 04: 21199350
I have used the Windows 7 Pro installation DVD and opened its Command Prompt option and then run the chkdsk and sfc programs but no errors were reported. Also, I ran bootrec with /fixmbr then with /fixboot and finally with /rebuildbcd but it made no difference.
After a failure, the next time I turn on the PC I am offered to repair Windows or to start windows normally. Using the repair from here didn't work as also happened when I chose the repair option from the Windows 7 Pro installation DVD.
Holding down the f8 key when Windows is starting doesn't make any difference.
BTW, the crash happens as the 4 small parts of windows are approaching each other on the Windows start screen.
I can access my hard disk by attaching it to my laptop. If the error 21199350 reported by Startup Repair failure is not the BSOD error, will this be recorded in a file each time it happens? If so, which file?
Any help will be greatly appreciated as I dread having to reinstall Windows 7 Pro from scratch again and all the many programs I spent ages installing.
Thanks
Paul

Sorry for the delay in replying.
This evening I managed to modify the PC registry from the Startup Repair command window so it wouldn't reboot on BSOD.
Used regedit.exe to modify the following in the PC's registry (I followed the 17 July 2011 Terra-byte "Modify the Windows Registry from Startup Repair" article):
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\CrashControl] and set AutoReboot to 0x00000000.
and also for ControlSet002.
The BSOD error is: 0x0000007B which seems to be a device driver problem.
Would my problem be caused by my installing 2x 2GB DIMMs that I bought on eBay into my Abit AB9 Pro motherboard's two free slots (the other two slots each have 1GB DIMMs) but on power on nothing happened?
Removing the two new DIMMs the PC powered on but then resulted in BSOD.
Thanks
Paul
Error 0x000000tB is a very often reported error. It means INACCESSIBLE BOOT DEVICE. Either something in your BIOS changed the type of storage device (AHCI -> IDE) or your HDD is experiencing a possible failure.
See info @ 0x0000007B (INACCESSIBLE BOOT DEVICE): Fix for Windows XP, Vista, 7, 8, 8.1
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

HP Envy 17-1181NR, Startup Repair / Recovery Manager / etc. not working

Okay, I've read some other similar threads made recently ("HP DV7 Recovery Issues", "HP Envy 17-2100ex") but feel I need to ask for help for my specific circumstances.
Model: HP Envy 17-1181NR
Product No.: YL747UA#ABA
SN: CNF0414VRL
Hardware: 17.3" Notebook, Intel Core i7-720QM processor, 750 GB HDD, 6 GB mem ...
OS: Windows 7 Home Premium 64-bit
Noticed computer was running really slow last night and this morning, ctrl+alt+del to bring up task manager, eventually saw that somehow (maybe with a recent upgrade?) msmpeng.exe was started and running, though I had disabled it long ago. I killed the process tree within task manager.
Looked online and read how much of a bother this msmpeng.exe can be and resolved to disable it again to keep it from starting automatically at Windows startup. So following what I read, ctrl+r, typed msconfig, used that to disable the antimalware services that launch/use msmpeng.exe and a couple other services that seemed completely unnecessary (I was 95% sure).
Restarted machine to have changes take effect, came back to it minutes later frozen at a wallpaper that's blue with light rays coming down through it, as with sunlight through water. Mouse cursor moves, but unresponsive to all keyboard and mouse button input. Later discovered this screen is the background to the Recovery Manager, which was hung...
Later discovered what had happened: that on the first restart, starting Windows normally, it reached a BSOD with message:
"UNMOUNTABLE_BOOT_VOLUME" ...blah, blah, blah, * * * STOP: 0x000000ED (0xFFFFFA80064D8C00,0xFFFFFFFFC0000185,0x00000...,0x00000...
Which flashed for a split second before auto-restart, this time stopping at "Windows Error Recovery" screen giving choice between "Launch Startup Repair" and "Start Windows Normally" again. The former happened automatically after 30 second or whatever time delay, and then after loading files, hung at the water-screen described earlier. I can repeatably encounter these two outcomes for the two choices on the "Windows Error Recovery" screen.
Hitting escape after restart, and hitting F11 for "System Recovery" takes me to same water-screen hang point. I tried looking at system info, then doing system diagnostics, tried different scans and eventually the system tune-up scan. This failed with:
Memory Test: PASSED
SMART Check: PASSED
Short DSTL FAILED
FAILURE ID: 94UFL3-5B65QF-XD002K-6OUL03
PRODUCT ID: YL747UA#ABA
Hard Disk 1
This made me think of a disc error and that I can't trust Recovery Manager to be launched correctly from the recovery partition, D:, so I popped in my recovery DVD (first of 5 burned from recovery partition much earlier). Choosing repair options in the startup from this disk, after changing the boot device order in the BIOS settings (F10), brought me to the very same hanging at the water-screen.
I then tried F8 for "Advanced Boot Options" and various safe modes with the intent of reaching a command prompt to run "chkdsk /f /r" and/or "fixboot". But it can't get past loading the CLASSPNP.SYS driver. And without a command prompt now, I can't very easily copy in a pristine CLASSPNP.SYS from matching model / OS.
Is this HDD gone bad, just coincidentally with what I'd changed? Or is this a software issue as I'd be inclined to believe? Any thoughts or inputs from anyone will be much appreciated. Thanks.

Hi
I found some info that may help you
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c01890478
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c01867124
Hope this helps.
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-VJ
Although I am an HP Employee, I am speaking for myself and not for HP.

Windows Failed To Start & Startup Repair Doesn't Work!!!!

I have an HP Pavilion dv5-2135dx laptop... I don't know what went wrong but I randomly have a "Windows Error Recovery" screen when i turn it on: "Windows Failed to Start. A recent hardware/software change might be the cause" and i can either choose "Launch Startup Repair" or "Start Windows Normally" BUT when i attempt to start windows normally, it goes back to the "Windows Error Recovery" Screen. If i click "Launch Startup Repair" it doesn't do anything but stay on another screen and i've let it be on that screen for a whole day and nothing happens. I've tried safe mode and again it goes back to the "Windows Error Recovery" screen. I've tried all the debugging options and it goes back to the error screen. When I shut it down and tapped F10 to enter the bios menu, i went under the diagnostic tab and ran both the Hard Drive Test and Memory Test. Here are the results: Primary Hard Drive Test- Hard Disk Full (305) Memory Test- Passed But i have no idea what that means because my laptop is brand new and it has 500gb... so the harddrive shouldnt be full. I'm in need of help because I don't know what to do after looking through abunch of forums... Please help me.

Hi i have almost the same problem but my labtop is an Hp HDX 16 and it dosent let me start up eather it goes into a blank screen and i also did the start up recovery and nothing i dont know what else todo

My iMac goes to disc utilities on startup, repair disk doesn't cure it and I can't reinstall Mountain Lion because I don't remember my I'd and password at the time I bought the software. Currently working abroad and at a loss can anyone help please?

My iMac goes to disc utilities on startup, repair disk doesn't cure it and I can't reinstall Mountain Lion because I don't remember my ID and password at the time I bought the software the system isn't accepting my current details and Apple isn't recognising the answers to my security questions. They don't even seem to have my correc date of birth so I can't progress the reinstallation. I'm currently abroad and have my iMac with me but with no way of contacting Apple that I can find, I'm at a loss and very reluctant to pay £35 to try and get my ID and pasword sorted out given that their system recognises my current details. can anyone help please?
AG

when they gifted me the mountain Lion software several years ago.
Mountain Lion was introduced in July 2012. Did the people who gifted you possibly use their Apple ID for the purchase of your OS? If you used your own Apple ID, you should have simply used the one you use for all things app store. The problem with any purchase at the app store is: whatever Apple ID was used to purchase, it willl stay tied to that Apple ID forever. And, purchases from the app store are not transferable.
So, you can check with the person(s) who gifted you or spend $20 to buy it - or, if your hardware is compatible with the new OS Mavericks, you could download it and associate it with your Apple ID.
FWIW, according to the licensing agreement, the OS remains the property of Apple and you are only granted a license to run it.

Help! Laptop won't start up- startup repair goes to black screen!

Hi! Just wondering if anyone can help me with my toshiba laptop C650-152! I was online yesterday when my laptop froze and in the end i had to turn it off by cutting the power source! Today I have tried to turn it on and It keeps going to a black screen with white writing which asks if I want to Start it normally or do startup repair! If I press start normally it gets me to the windows start up screen (with the coloured logo) but then gets stuck there. If i press start up repair it goes to a black screen with a White mouse cursor and gets stuck there too! I can use a laptop just fine but am pretty clueless when it comes to technical matters so if anyone could help explain what I should do (in laymens terms) it would be much appreciated!! Thanks in advance for your help! Beth

To burn the disc from an ISO file, Beth, you may need a third-party utility depending on the version of Windows. I use the free BurnCDCC burning program from here.
TeraByte Unlimited Freeware
To use the disc do I just turn my laptop on..?
Something like this. Turn the computer on, load the disc, turn the computer off, start it again and then press F12 to get the boot-priority men, select the optical drive, follow the instructions (like choose a language and a Windows installation), and you're on your way to the Windows Recovery Environment.
Then will a menu appear so I can choose to do a system restore or do I have to search for it? Finally will doing a 'system restore' delete any of my saved data such as photos/music/uni work?
All that was answered at the link I already gave you.
What are the system recovery options in Windows 7?
Click Show All. Under System Restore, click the links What is System Restore and System Restore: frequently asked questions. No data files are disturbed by System Restore.
-Jerry

Startup Repair Not Starting

A friend recommended installing Spybot and Malwarebytes onto my computer. I installed and ran them. At the end of that, it asked me to restart the computer. I did, and now I can't get my computer to boot up.
It either:
a) goes to a black screen with it saying "Starting Windows" without ever starting
b) goes to a blue screen if I try any of the repair/recovery options
c) goes to a "loading Windows Files" screen if I try to start any of the "Safe" modes.
I've tried F8, F9, F10, F11 and Esc.
I've tried almost all of the options in F8. The repair options goes to b), the safe options go to c) and rebooting goes to a).
F9 diagnosed the problem with "Error Code: BIOHD-3. No Bootable Device Detected"
F10 and Esc led to screens that I'm not quite sure how they might help but they did bring up screens.
F11 led to b)
Basically it seems like it wants to go to the repair/recovery menus. I found a couple sites that show me what *should* happen. Like this site...
http://www.howtogeek.com/howto/7728/troubleshot-startup-problems-with-startup-repair-tool-in-windows...
I've seen the first 3 screens, but then where it shows the menu "System Recovery Options"... that menu just never comes up, though I am on that blue screen. It seems like it wants to bring it up but never does.
I've tried 4 different recovery discs, they all seem to lead to that same place, that blue screen without the menu coming up.
So... any ideas of what to do?
If I disconnected the hard drive from that computer, and then attached it to another computer with the intent of using it as an external hard drive... would it work? Or would the issues I describe prevent me from doing anything with it? Is it just now a large paperweight now?
My computer is...
HP Pavilion p6204y
Windows 7 (64 bit ... I think)
(I'm not sure if this is unrelated or a sympton, but I had a problem with Mozilla Firefox 2 days before this happened. If I was watching videos or tried to bring up Firefox, it would just freeze my computer and I couldn't do anything. Rebooting allowed to get back to windows, but I could not watch any videos or bring up Firefox. Internet Explorer did work. I'm not sure how I fixed it, but after 4-5 hours or trying to fix it, somehow I did)

Hi,
It may be that the Hard Drive itself is failing, which may also explain the previous issue you describe.
Try the following.
Create a Windows 7 Recovery CD and try running 'Start-up Repair' from this. Download the relevant ISO from the links below - I've included the 32bit Image just in case.
Windows 7 32bit
Windows 7 64bit
You should use an application such as ImgBurn to burn the ISO to a CD. Once created, or if you already have this, insert the CD and restart to boot from it. Select the Repair option.
Select the 'Repair your Computer' option and follow Option 2 in the guide on the link below to run Startup Repair - if this will now run, you may well need to try this 2 - 3 times.
http://www.sevenforums.com/tutorials/668-system-recovery-options.html
Regards,
DP-K
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****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Microsoft MVP - Windows Experience

My computer has been taken over at startup by Startup repair.

when i first start my computer a program calling itself startup repair begins to run.It scans for about 5 minutes during which time I can do nothing with my computer.I have gone to add,remove programs to uninstall it ,but can find no listing of such anywhere.I have not installed anything like this to my knowledge.

That is a feature of Windows 7. 
http://windows.microsoft.com/en-US/windows7/products/features/startup-repair
See a Windows support forum for help with that. 
http://lounge.windowssecrets.com/index.php

How do I run Win7 Startup Repair from USB to repair Bootcamp installation?

I messed up my bootcamp partition after resizing the OSX partition to give it more space so I found this fix - http://mourougan.com/2013/06/22/repairing-boot-camp-after-creating-new-partition /
The fix worked in that the windows partition now shows up on startup manager but when I try to load it the 'missing operating system' error message shows.
So I need to run Startup Repair from USB but when I try that from startup manager it just gives a black screen and blinking cursor, nothing happens from there...
Can anyone help with getting startup repair to load? any advice greatly appreciated.
Many Thanks

Ok here are the outputs from my testdisk -
Should I go ahead and do the Gdisk part described in that thread using my values from the first screen shot? -
Rebuild GPT4 using start/end offsets
Sudo gdisk /dev/rdisk0
P (print the full list of parts)
D (delete)
4 (part 4)
N (new part)
4   (part 4)
743868416 - Start offset in bytes (start point for Bootcamp part)
+232904697 (Size offset as opposed to End offset)
0700     (Windows part type)
P           (print list of all parts just to see what changes will be made)
W         (Write the new GPT)
Y           (Yes! really write the new GPT)
This will delete and re-write the GPT partition info for /dev/disk0s4.

BSOD at power on: Startup Repair: Repeat: Unresponsive to anything

My situation seems different than the BSOD Win 7 issues I have read about. I can get no response.
Just got a new Lenovo G570 two weeks ago. Came loaded with Win 7 SP1 64 bit.
Now, at power up the BSOD flashes and goes to Startup Repair and then shuts itself down. Repeat. And repeat. And repeats with no response. The first run though it reported "AutoFailure" and "Unknown Cause." The second or third time, "AutoFailure" and "Unknown System Configuration Change."
Since I can get no response to anything, I pulled the power cord. Let it sit over night.
I booted from disc. (I get points for having burned the Recovery Disc!) The computer went directly to Startup Repair and reports: "AutoFailure" and "No root cause". I was able to get the computer to respond at this point and went to Advanced Options.
Ran the Memory test. No issues.
Then ran the Memory diagnotic tool from disc in Extended. Nothing.
I haven't had the computer long enough to create an Image. I do get points for having burned a Recovery Disc!
Of course, the System Restore can't find any of the auto Restore point or manual Restore points I created.
This may or may not be part of the problem. Originally the EE Bott Optimizer ran great. Then it crazy, continually rebooting, not allowing me to cancel and if I could get it to cancel, it would restart in a few minutes and shut the system down. I posted here and I was told uninstall and reinstall. So I did. Seem fine. A few hours latter....... not so good.
From what I have been reading, this sounded like a hardware failure. Two techs, not from Lenovo, have confirmed it is a hardware failure. Great, two weeks and...
Any way, any recommendations?
Thanks for your help!
FP

I am having a similr issue with my Lenovo G770. I usually escape out of the boot optimizer. Today I let it run and it went to the "starting windows" screen with a brief startup of the windows 7 animation...it freezes for a second, then a quick flash of the bsod, then to the "windows error recovery page" giving me the option of "starting windows normally" or "Launch Startup Repair (recommended)."
Starting Windows Normally eventually brings me back to the same place after repeating what I just stated above paragraph.
Startup Repair "Cannot repair this computer automatically".
So I go to view advanced options for system recovery and support.
It brings me to 5 options:
Startup Repair (we already tried this above)
System Restore (unfortunately I didn't create any restore points)
System Image Recovery (unfortunately I haven't created an image to recover)
Windows Memory Diagnostic (no problems found-done several times)
Command Prompt (don't know what I can do here except for remove a bad/corrupted driver which may be the problem, but I don't know the driver name that is associated with the boot optimizer...can anyone tell me this?)
I've tried booting to safe mode in all of its incarnations and I can't even do that..it repeats the same things as stated above...windows 7 animation briefly starts then locks up, flash of bsod, then the windows error recovery page.
I've tried booting to last known good configuration (same thing occurs...brief startup of windows 7 animation, freeze, flash of bsod, then error recovery page.
The only thing that has given me any kind of result was "disabling system restart on system failure."  When I do this, the BSOD doesn't flash briefly..it stays. and it gives me the error message page_fault_in_nonpaged_area.
I'm at a loss as to what to do. Not being able to boot into Safe Mode even is really frustrating.  Any advise from anyone?  can I remove the driver associated with the boot optimizer? If so, what is the name of the driver?

Hp Pavilion G6 "Launch Startup Repair" problem

I have had my Hp Pavilion G6 series laptop for a year or so, and a couple days ago it froze while I using it. I turned it off, and when I got back on a black screen came up titled "Windows Error Recovery". It had two options -Launch Startup Repair
-Start Windows Normally
I decided launching startup repair sounded like the right option, so I clicked it, and it did something like it was loading. Then it brought me to a grey screen, and it hasn't gotten passed this screen since. I've attempted starting windows normally, but it loads for 5-10 seconds then returns to the "Windows Error Recovery" screen. I'm very frustrated with this, and do not know what to do about it. Any help is greatly appreciated!

Hello everyone. I understand you are experiencing issues booting the computer. To assist you properly, I require the following information:
1. The computer model number. If you require assistance locating this information, please reference this website: http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00033108
2. Your operating system. If you require assistance locating this information, please reference this website: http://windows.microsoft.com/en-CA/windows/which-operating-system
3. Have you installed any new hardware on this computer, before the issue appeared?
4. Have you installed any new software or drivers on this computer, before the issue appeared?
Please respond as soon as possible. I look forward to your response.
Mario
I worked on behalf of HP.

Startup Repair Offline: Unable to fix problem and beep codes

Hi,
I have an issue with my PC startup and boot,
My PC Model: Lenovo H330, Windows 7, i5 Intel processor.
Basically on the first attempt at booting, my pc plays a beep code which sounds like = 'beep-beep' + 'beep-beep-beep' followed by a blank screen, on a second attempt the pc boots fine.
I believe this is 1 long and 3 short, the code does not seem to be in the Lenovo Bios support guide to beep codes, not only this but when I attempt Startup Repair in order to fix the problem it states it has
failed to fix the problem, details below:
Problem Event Name: Startup repair offline
PS1: 6.1.7600.16385
PS2: 6.1.7600.16385
PS3: unknown
PS4: 268
PS5: Autofailure
PS6: 1
PS7 No Root Cause
Local ID: 1033
Further Information:
- Information on the failure to repair states error code 0x490
- Before the issue started, AVG Free Antivirus 2015 lost active components and I was unable to update or turn components back on; at the same time it proved to be very difficult to uninstall.
Really need help with this thanks!

Hi Eli,
I agree with ZigZag ,you may need to resolve the beeps code first .The machine may suffer a hardware issue .
For the error code 0x490:
Here is a link for reference of reference :
Windows 7 Startup Problem - Error code 0x490
https://social.technet.microsoft.com/Forums/windows/en-US/299b227b-fa38-4902-b41a-d868075d763e/windows-7-startup-problem-error-code-0x490
First of all ,follow Parvesh_s`s answer ,check the BIOS settings .We may need to reset the BIOS settings to have a check.
If the issue persists ,take the KrisM771`s method to repair with an installation media.
If the auto repair will not work ,take the alebcay`s suggestion .Repair it with the command .
Best regards

BootCamp Partition- Missing Operating System Windows Startup Repair

Hi.
I made the mistake of creating a new partition on my HD with an existing Boot Camp partition. I tried to follow the advice of Loner T in this thread https://discussions.apple.com/thread/6574886, and got made the Windows installation bootable. Upon starting up Windows the screen displayed 'Missing Operating System', I tried doing a Windows Startup Repair using the Windows Installation Media without any luck.
Here is the current state of my hard drive.
diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *256.1 GB   disk0
   1:                  Apple_HFS                         209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            201.3 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:               Windows_NTFS                         20.0 GB    disk0s4
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 31130/255/63 [500118192 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: AF 1023 254 63 - 1023 254 63 [         1 -     409639] HFS+
2: AF   25 127 15 - 1023 254 63 [    409640 - 393139416] HFS+
*3: AB 1023 254 63 - 1023 254 63 [ 393549056 -    1269536] Darwin Boot
4: 07 1023 254 63 - 1023 254 63 [ 461056000 -   39061504] HPFS/QNX/AUX
sudo gpt -vv -r show /dev/disk0
gpt show: /dev/disk0: mediasize=256060514304; sectorsize=512; blocks=500118192
gpt show: /dev/disk0: MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: error: bogus map
gpt show: unable to open device '/dev/disk0': Undefined error: 0
sudo dd if=/dev/disk0s4 count=1 2>/dev/null | hexdump -C
00000000 80 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 |.. . . . . . . .|
00000010 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 | . . . . . . . .|
00000140 04 00 00 00 02 01 00 0c 00 00 78 2e 50 15 00 00 |..........x.P...|
00000150 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 |.. .............|
00000160 00 00 00 00 00 00 8a 00 78 2e 50 15 00 03 00 00 |........x.P.....|
00000170 01 00 03 00 35 35 09 00 00 00 3e 00 8c 09 00 00 |....55....>.....|
00000180 76 01 00 00 15 00 02 00 91 77 1c 00 00 00 02 01 |v........w......|
00000190 c9 b5 04 00 01 00 02 00 2c 00 00 00 8c 09 00 00 |........,.......|
000001a0 76 01 00 00 15 00 00 01 00 00 1e 00 00 00 00 01 |v...............|
000001b0 00 00 00 00 41 00 03 00 fb 03 00 00 0c 00 20 00 |....A......... .|
000001c0 10 00 f8 03 35 35 09 00 01 d2 46 00 00 c3 29 0b |....55....F...).|
000001d0 23 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 |#. . . . . . . .|
000001e0 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 | . . . . . . . .|
00000200

Please download GPT Fdisk (http://sourceforge.net/projects/gptfdisk/) and Testdisk (http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step).
1. Your GPT is corrupt.
2. The MBR is incorrect.
3. You do not have a valid NTFS header.
You need to run Testdisk first to find the correct NTFS header. Please see http://imgur.com/a/PjmnK for the Testdisk screens.

Startup repair for hp pavillion o1710n vista..

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