"Error loading operating system" in windows 7 bootcamp

Hello, Im trying to boot up my windows 7 and its giving me "Error loading operating system". But the wierd thing is from Mac OS X i can access my bootcamp without any problem "browsing it", all my music is on it actually. Any solutions guys?

Hi guys,
Sorry to resurrect an old thread, but I am suddenly having a very similar problem and maybe one of you can help me. I have searched the problem using many different phrases but have not found a solution to my specific issue anywhere so I turned here.
Problem : I am getting the "Error Loading Operating System" error on the windows side after trying to boot up using BootCamp.
More Info / History : Everything was running fine until I updated OSX to 10.10.02. I have an unsupported card with no EFI : GTX 980 so I couldn't tell what was going on with the update but it just hung in black screen for a while and then when into an infinite restart-loop. Sooooo, I pulled the card and put my old GTX 120 with EFI back in to see what the **** was going on and miraculously it decided to finish the update. (Maybe it had something to do with the unsupported card? IDK) The update finished successfully after i swapped out the cards but I fear i screwed up something by restarting during the update (I was hung up, I waited a very long time before hitting the power button). OSX is running ok, I put the other card back in and it is working ok now, but... BootCamp was working... once. Then I restarted and it wouldn't work, I got the error message. So I tried doing a verify/repair disk on both drives, OSX and W7, and that didn't do anything, so I tried to start BootCamp assistant and I couldn't... So I reset the PRAM and that fixed the problem with BootCamp Assistant, so now that starts up, but I don't know if I can repair the issue with it? However I still can't boot into Windows. Again, when I hold down option on boot, I do get the menu (BootCamp?) to choose which OS to go into. Side Note, when I pick Recovery Mode from that menu, I get the mac error message and it restarts.
All the W7 Files are still present on the drive... Is there any way I can back up the image, re-prep the drive for BootCamp and re-image it to repair it? All thoughts, suggestions, etc. welcome.
Hardware:
• Upgraded 2009 Hex-Core Mac Pro flashed to 2010
• OWC PCIE SSD - OSX 10.2.2 installed here
• nVidia GTX 980 - EVGA
• 1TB HDD - 1 Partition - Windows 7 installed here (Bootcamp)

Similar Messages

Error loading operating system (windows 7)

Macbook pro 8,2 (early 2011)
Samsung SSD 850 evo primary drive
OWC electra 3G secondary drive in place of the original DVD drive (with disk doubler).
My original HDD was removed for the two SSD configuration.
It contains two partition (OS X and Win 7 pro) and everything works fine.
I use Winclone to clone Win 7 partition to the new OWC drive.
My OS X partition was placed on the primary Samsung drive.
OS X works fine.
Win 7 works fine when i use Parallels Desktop (virtualization).
But when i try to boot with Win 7, i have the " error loading operating system" black screen.
I cannot repair Win 7 with the installation disc because when i try to boot with the DVD, i have à black screen with a white cursor and nothing happend. (original DVD drive is used in usb, inside a dedicated external cradle).
Here are some of terminal commands :
Last login: Sat Feb 14 17:26:06 on console
MacBook-Pro-de-Guillaume:~ Home$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Mac                     499.2 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *120.0 GB   disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:       Microsoft Basic Data Windows 7               119.8 GB   disk1s2
MacBook-Pro-de-Guillaume:~ Home$ sudo gpt -vv -r show /dev/disk1
Password:
gpt show: /dev/disk1: mediasize=120034123776; sectorsize=512; blocks=234441648
gpt show: /dev/disk1: PMBR at sector 0
gpt show: /dev/disk1: Pri GPT at sector 1
gpt show: /dev/disk1: Sec GPT at sector 234441647
      start       size index contents
          0          1         PMBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640       2008
     411648 234029056      2 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
234440704        911
234441615         32         Sec GPT table
234441647          1         Sec GPT header
MacBook-Pro-de-Guillaume:~ Home$ sudo fdisk /dev/disk1
Disk: /dev/disk1 geometry: 14593/255/63 [234441648 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 - 234441647] <Unknown ID>
2: 00    0   0   0 -    0   0   0 [         0 -          0] unused
3: 00    0   0   0 -    0   0   0 [         0 -          0] unused
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused
MacBook-Pro-de-Guillaume:~ Home$ sudo gpt -vv -r show /dev/disk1
gpt show: /dev/disk1: mediasize=120034123776; sectorsize=512; blocks=234441648
gpt show: /dev/disk1: PMBR at sector 0
gpt show: /dev/disk1: Pri GPT at sector 1
gpt show: /dev/disk1: Sec GPT at sector 234441647
      start       size index contents
          0          1         PMBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640       2008
     411648 234029056      2 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
234440704        911
234441615         32         Sec GPT table
234441647          1         Sec GPT header
MacBook-Pro-de-Guillaume:~ Home$
Thank you for your help !

You are creating a new protective MBR, not a Hybrid MBR. A protective MBR encapsulates the disk into a single entry the size of the disk so legacy partitioning tools leave it untouched to 'protect' the GPT.
In your case, since disk1 has only two partitions, GPT1 and GPT2, you should have two entries.
Here is an example, where GPT3, 4 and 5 are hybridized.
Rebuild MBR to match the new GPT information thus resetting the Hybrid MBR.
Use defaults for other questions (for example Enter an MBR hex code (default AF): AF).
Sudo gdisk /dev/disk0
P (Print list of parts)
R   (Recover)
H (chooses Hybrid)
Partitions numbers to be hybridized: 3 4 5
Y (Good for GRUB question)
N (part 3 boot flag)
N (part 4 boot flag)
Y (part 5 boot flag make NTFS bootable partition)
P (Print list of parts again)
W (Write the new MBR)
Y    (Yes! write the new MBR)
Reboot
Please ensure that the following questions get appropriate defaults or correct values for the MBR hex codes as suggested by Gdisk. These are examples using a standard, your partition numbers will have a differential of 1. Given the prior Gdisk steps, your mapping will look as follows
GPT1+2 (EFI+OSX) = MBR1 (You lose read visibility to OSX from Windows).
GPT3 = MBR2 (Recovery HD).
GPT4 (Shareddisk) = MBR3 (Shareddisk)
GPT5 (Bootcamp) = MBR4 (Bootcamp - This should be made bootable).
You can create variants of which partitions get mapped to which MBR). If you use 2 4 5, then Recovery will look like Free Disk space to Windows and can be corrupted. If you use 4 5, then EFI+OSX+Recovery HD will end up in MBR1. Try and see which works the best for you. In this configuration, I would also recommend not using any third-party NTFS tools.
The following is an example for 2 3 4
Creating entry for GPT partition #2 (MBR partition #2)
Enter an MBR hex code (default AF): AF
Set the bootable flag? (Y/N): n
Creating entry for GPT partition #3 (MBR partition #3)
Enter an MBR hex code (default AB): AB
Set the bootable flag? (Y/N): n
Creating entry for GPT partition #4 (MBR partition #4)
Enter an MBR hex code (default 07): 07
Set the bootable flag? (Y/N): y
In your case the steps will become...
Sudo gdisk /dev/disk0
P (Print list of parts)
R   (Recover)
H (chooses Hybrid)
Partitions numbers to be hybridized: 2
Y (Good for GRUB question)
Y (part 2 boot flag make NTFS bootable partition)
P (Print list of parts again)
W (Write the new MBR)
Y    (Yes! write the new MBR)
Reboot
After the reboot, check the output of sudo fdisk /dev/disk0.

Error loading operating system- windows xp/windows me

Hi,
So, I have a Hp Pavillion 9715 desktop with windows xp professional and basically yesterday I turned on my computer and all it would do would go to the black screen saying "error loading operating system"
Now I'm not really sure what tp do I was going to reinstall window xp, but i dont how to do this as i don't have the cd and the computer wont even power up in safe mode. I then realised that my computer's operating system is windows millenium edition, which i havs the recovery cd for. i could use this, but id lose all my data. i was wondering if there was a way to save or transfer all my files to a different hard drive. Or if there was a way to use the recovery cd to repair everything without me losing all my personal files, or would this not work because it would be windows me that is reinstalled and not xp?
If anyone at all could help me id be so grateful, its quite annoying/upsetting. Thanks

Welcome to the HP Forum!
nickiblahblah wrote:
Hi,
So, I have a Hp Pavillion 9715 desktop with windows xp professional and basically yesterday I turned on my computer and all it would do would go to the black screen saying "error loading operating system"
Now I'm not really sure what tp do I was going to reinstall window xp, but i dont how to do this as i don't have the cd and the computer wont even power up in safe mode. I then realised that my computer's operating system is windows millenium edition, which i havs the recovery cd for. i could use this, but id lose all my data. i was wondering if there was a way to save or transfer all my files to a different hard drive. Or if there was a way to use the recovery cd to repair everything without me losing all my personal files, or would this not work because it would be windows me that is reinstalled and not xp?
If anyone at all could help me id be so grateful, its quite annoying/upsetting. Thanks
Wow! Your PC is almost as old as my (1996) Compaq 14XL244 Notebook.
It still works, but required hard disk replacement about six years ago. I suspect you will have a very hard time getting any files from your IDE hard disk. You can try putting the hard disk in an external enclosure and connecting it via USB to another PC.
The error message that you are seeing means that the BIOS can no longer recognize the hard dive.
It is probably time to consider updating to a more recent PC. You certainly got plenty of good service life from it.
Kind regards,
erico
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

T61: "Error loading operating system" after reboot with Windows XP SR3

So here is my problem: Occasionally, after reboot I get "Error loading operating system" right after the Lenovo screen (the one where you can press ThinkVantage button). After that the only thing I can do is shut down the computer and fix the windows boot (see bellow…). I'm running Windows XP SR3, clean install.
I've had my T61 for 6 months now and I've had this problem about 8 times so far. Obviously this makes my T61 unstable and is becoming a major problem (I like to shut down the computer before taking it anywhere, and I don't really use Hibernate).
Solving the boot is very easy and takes 3 minutes… But the Win XP CD is needed for the fix and I don't want to carry it around with me everywhere. And anyway this is annoying and makes my T61 crippled…
To fix the problem:
1 Change AHCI -> Compatibility in BIOS.
2 Boot using the Windows XP CD.
3 Enter the Recovery Console (press R).
4 Use "fixboot" to write a new boot sector.
5 Restart ("exit").
6 Change back to AHCI in Bios.
After that the computer works perfect until the next time… Things I have tried so far:
1 Installed latest Bios for T61.
2 Checked firmware for HD (WD Scorpio WD1600BEVS) and it's the latest.
3 Installed all windows updates for Windows XP.
4 Installed all latest drivers for T61 (specifically checked the Intel Matrix Storage Driver and it's the latest).
5 Checked computer for Viruses, malware, etc. with a few scanners. It's clean.
6 Updated some of the programs that I thought might be causing problems: Avira , PerfectDisk 2008, TrueImage Home…
7 Checked HD with WD Diagnostics tools
I am out of ideas. Something is corrupting the boot sector occasionally when I shut down the system. But I can't find why or under what circumstances it happens… The only thing I didn't try was a completely new clean system install, a thing which I REALLY don't want to do. Except for this problem the system is great, very stable and I'm very happy with it.
Any ideas? Thanks in advance.

I run the windows version of TestDisk. Is there any specific reason for me to make a Live CD? It seems to work just fine in windows. Anyway, I run all the analysis tests with it. It did NOT find any problems. Is there some specific test I should run?
Some further testing has shown me that the problem happens sometime during using windows and not upon restarting... When it does happen I can no longer use chkdsk - it gives the following error message:
"The type of the filesystem is RAW.
CHKDSK is not available for RAW drives."
Some other things I tried:
- I've pretty much ruled out physical HD problems (I checked the HD with PC Doctor, WD's Data Lifeguard Diagnostic Tool and chkdsk - no problems). And the HD shows no symptoms of failure (no noises or any other problems).
- Ruled out boot-sector Viruses (cheked the computer with 4 different antiviruses - Avira,AVG, Kaspersky and NOD32).
- Manually checked the boot.ini file - no problems.
- I have also found while googling that the problem might have to do with a registry entry concerning HDs bigger then 137gb. I double checked that entry and it's fine.
- Tried both fixmbr and fixboot, alone and together - windows boots, but the problem comes back again after a few hours/days...
Things I'm trying now:
- Reinstalled the Intel Matrix Storage Drivers (before I just checked that they are the latest).
- Disabled the Active Protection System (I am shooting in the dark...).
I am getting pretty desperate here.

Error loading operating system after factory reset CQ61 windows 7

Its a Compaq CQ61-306SA running windows 7. I did a factory reset and after a while got a black screen with ERROR LOADING OPERATING SYSTEM.It never came with any discs or copy of windows so is there any way of fixing this problem. Please help am getting ready to throw it at the wall.Thankyou

Did you burn an OS Recovery DVD set using the software on your machine? If so boot from the first one and follow the prompts.
If you didn't burn your set ,they can be ordered for a small fee>> Contact HP
******Clicking the Thumbs-Up button is a way to say -Thanks!.******
**Click Accept as Solution on a Reply that solves your issue to help others**

"Error Loading Operating System" Message on startup. Need Help~~

Hi Peoples,
I got the "Error Loading Operating System" message when restarting widows. Been pulling my hairs off the past few days looking for solutions, but with no dice. anyone have a solution??
I think the problem occurred when my computer got crashed, so I forced to turn off the computer buy hitting the power button, the next time I started the computer and it gives me a "Error Loading Operating system".
I have tried the recommendation from Microsoft by updated the bios. Didn't work.
http://support.microsoft.com/kb/326676
Other solutions that recommended from varied resources, recommanding to set the drive from LBA to Large. But I don't see that option in the Bios setup.. maybe because my HD's was setup as RAID 0?
and other recommended to use a startup disk boot into DOS and use the fixboot/mbr to fix the mbr. But when I tried to boot with a startup disk I can't seems to find my C:\ (which is the RAID 0). How can can boot to the into the RAID?
Any help would be greatly appreciated.
Specs of my computer
CPU: P4 3.0
Mother Board: 875P Neo-LSR/
Graphic Card: Nvidia Quadro FX 1000
Memory: 2 GB
HD: 2X 80 Seagate SATA Drive Configured as RAID 0

Hey Stu, Thanks for your reply. Yes, I think the bios is configured correctly and the Raid is configured as the way it use to be.
About the crashed, last time when I shutted down widow, using the Shut down button in the Start Menu, Window got got freezed and the power is still on, due to frustration I hit the Power button to turn off the computer, the next day I turn on the computer, and it gives me the error message.
<-----------------------------------------------------------------------------------------
I am using Amibios version 3.31a,
Harddrives I have the following:
2X80GB Seagate SATA figured as RAID 0 for C:
80GB Maxtor on Primary ID Master
80GB Western on Primary ID Slave
Samsung CDRW/DVD on Secondary IDE Master
NEC DVD RW ND on Secondary IDE Slave
Bios setting > Intergrated Peripherals > On-Chip IDE Configuration I have the following setting:
On-Chip ATA Operate Mode: Native Mode
ATA Configuration: S-ATA Only
S-ATA Keep Enabled: Yes
P-ATA Channel Selection: Both
Combined Mode Option: P-ATA 1st Channel
S-ATA Ports Definition: p0-1st./P1-2nd.
Configure S-ATA as RAID: Yes
----------------------------------------------------------------------------------------->
PS: Is there a way to boot into the C: (Raid 0 drive) Using Dos? or maybe I can check the files is still in C drive? If the files are there, means the drives are OK? and Maybe I can use the "Fixboot" the problem? Please advise, again thanks for your help.
Thanks.

"Error loading operating system" in Boot Camp/VMWare OK

Hi, I'm getting "Error loading operating system" followed by the pc blinking _
when I try to boot directly into Windows XP Pro using the option key at startup now w/ Boot Camp. But the partition works fine when using VMWare Fusion from within Mac OS X.
It used to work fine booting both into boot camp and VMWare. Any ideas, I'm pretty stumped here....
Thanks!
Message was edited by: djohnsto77

Yes I am sure I've read of others, but on VMware Fusion forum.
http://communities.vmware.com/community/vmtn/desktop/fusion

Error loading operating system

my computer is displaying "error loading operating system" so I insert a DVD and try to boot but still displaying the same ..its still new and I have the warranty with me

Dear Customer,
Welcome to HP Support Forum and we are glad to assist you.
It looks like you are having lot of difficulties to get to the Windows Desktop as its not responding
We will surely assist you with this.
According to the message you have posted I suspect this could be because of the recent changes made if any.
I would kindly request with you to perform the below shown steps to resolve the issue:
Step 01. Turn OFF the PC
Step 02. Power ON the PC and keep tapping F8 Key
Step 03. Select "Safe mode" from the Advance Boot Option list
Note: Wait till you get to the Windows Desktop
Step 05. Please remove unwanted startup items and uninstall unwanted applications
Step 06. Please reboot/restart the PC the normal way
Note: Incase if these steps doesn't work you can continue troubleshooting the issue again
Step 01. Turn OFF the PC
Step 02. Power ON the PC and keep tapping F8 Key
Step 03. Select "Last known good configuration" from the Advance Boot Option list
Note: Wait till you get to the Windows Desktop
Step 04. Please remove unwanted startup items and uninstall unwanted applications
Step 05. Please reboot/restart the PC the normal way
Hope this helps, for any further queries reply to the post and feel free to join us again
**Click the KUDOS star on left to say Thanks**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
K N R K
I work on behalf of HP

"disk read error" and "error loading operating system"

Hello,
I have a problem with my N100 0768 BSG with Windows XP system. When I turned it on there was a lenovo screen with a sign: "to interrupt normal startup press lenovo care button" as usual. But after that instead of Windows loading there was a sign: "disk read error". I rebooted it, run rescue and recovery and started recovery proces.
However after about 20 minutes of recovery process, I saw a blue screen with some error and I could only shut down the computer. When I turned it on again, there was lenovo screen and after that I saw: "error loading operating system". I rebooted it but now I can't even run "rescue and recovery".
I downloaded some diagnostic programme from lenovo site, burned it on dvd and run on my lenovo. When it was doing "Surface scan test" of my hard drive, there was an error: "Error : Found uncorrectable data error."
I thought about buying rescue and recovery cd from lenovo but I heard that they do not sell it in Poland.
Please help me.
Sorry for my English.
Solved!
Go to Solution.

If you have a dual core processor and 2 GB of RAM you will have no problems running Windows 7. You can check the microsoft hardware compatibility site to find out for sure.
Why 32 bit over 64 bit?
Unless you are doing an application like Video rendering or using a Digital Audio Workstation you probably won't notice any performance difference. Most applications today aren't written to take advantage of a 64 bit OS. This will happen over time but for now - you just don't need it. The 32 bit OS will be more compatible with older peripherals like printers and other devices where the manufacturer may not have built a 64 bit driver. Also when you get the upgrade disk you will get both versions so you can start with the 32 bit and always upgrade to the 64 bit at a later time if you really need it. You can only address a little more than 3 GB of RAM in a 32 bit OS but that is usually overkill for most applications people use. A 64 bit OS will allow you to address more memory but you will not gain any performance increases unless the specific application you run is written as a 64 bit application.
I have also found certain older applications that don't work with the 64 bit OS. So it really depends on what peripherals you are using and what applications you tend to use. The safe bet is to go with the 32 bit version.
If you decide to use XP just burn a copy of the XP disk and then you will have one the next time you need to reload. The licensing has nothing to do with the media - it is all about the license you own. Your license key should be on the bottom of your laptop.
Hope this helps.

Re: Satellite A300 - Error loading operating system

Hi, I have a laptop satellite a300 and when I boot the system I get an error message 'Error loading operating system' - if some kind poster can help me on this matter it would be much appreciated.
Thanks
Don

Do the BIOS recognize the HDD? Check this in BIOS.
Can you boot in safe mode?
If you can go in the advanced boot menu, choose repair my computer and select the Toshiba recovery option. This procedure reinstalls the OS.
This feature is only available with a preinstall Windows Vista. If you have Windows XP, you must use the CD.

How to fix "error loading operating system"

My pc becomes lag and i did defrag the c driver. it took almost 2 hours, so i stopped it. after i restart my pc back, there was a message "error loading operating system". anyone can help me? please im stuck.... i cant do anything and i can access
to safe mode. too bad :(

If you don't have the Operating system CD
try to repair OS or choose last known good configuration
update your BIOS (bit risky)
a few restart sometimes help
You have windows 7 CD's?
If yes, you can use start up repair
1.Insert your Windows 7 install disc
2.Restart your computer and boot from the CD
3.Press any key when you see “Press any key to boot from CD or DVD”
4.Click Repair your computer after selecting your language, time and keyboard method
5.Select the drive of your Windows installation and click Next. The standard drive is usually C:\.
6.Select Startup Repair and wait for the process to finish.
or you can perform system restore from the disk
1.Insert the Windows 7 install disc
2.Restart your computer and boot from the install disc
3.Press a key when “Press any key to boot from CD or DVD” message appears on your screen
4.Click on Repair your computer after selecting a language, time and keyboard method
5.Select the drive where you installed Windows (usually C:\)
6.ClickNext
7.Select System Restore from the System Recovery Options window
8.Follow the System Restore instructions to select a restore point
9.Restore your PC by clicking Finish
or bootrec.exe and rebuild the BCD
1.Insert your Windows 7 install disc
2.Restart your computer and boot from the CD
3.Press any key at the “Press any key to boot from CD or DVD” message
4.Choose Repair your computer after you select the language, time and keyboard method
5.Select your Windows installation drive (usually C:\)
6.Click Next
7.Select Command Prompt from System Recovery Options
8.Type the following command and press Enter: bootrec /rebuildbcd
or you can use windows or other 3rd party app to recover OS, but its also need OS media files
http://windows.microsoft.com/en-us/windows/what-are-system-recovery-options#what-are-system-recovery-options=windows-7
http://neosmart.net/EasyRE/

P2vhd and error loading operating system

I used p2vhd to create a windows server 2003 server to a vhd file. I have done in this in the past wihtout any issue but it seems this time when i load the vhd i get the message. error
loading operating system. Any idea why this is?

Hi KirkSH,
I am assuming that you are using SCVMM to achieve P2V .
And the following article indicated that server pack2 is required to install into
server2003 when you try to do P2V :
http://technet.microsoft.com/en-us/library/hh427293.aspx
Also it is recommended to use windows server 2003 with sp2 as a VM in hype-v 2008/R2 and hyper-v 2012/R2 .
For details please refer to following links :
http://technet.microsoft.com/library/cc794868(WS.10).aspx
http://technet.microsoft.com/library/hh831531.aspx
Any further information please feel free to let us know .
Hope it helps
Best Regards
Elton Ji
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Boot camp error loading operating system

when i hit restart and held down option, i clicked on windows but it loaded a black screen saying error loading operating system. I am running Os X 10.9.4. Does anyone know why boot camps is not working?

Loner T, not sure if you saw this, but I created a new post with the information you were looking for. Any help you could provide would be great...thanks.
Re: Boot camp - error loading operating system

Boot Camp "Error loading operating system" error

When I try to boot into Windows XP via boot camp I get "Error loading operating system"
The partition still works fine with VMWare.
Any suggestions?

Just an idea for you. There is an entire Apple Discussion forum dedicated to Boot Camp and Windows.
Whereas, not everyone here with an Intel iMac has installed, tried to install or has experience with BC & Windows, everyone there has or at least has an interest. You may attract help more quickly there.
The Forums are at the bottom of the main Apple Discussions page under Windows Compatible Technology. Here is a link;
Boot Camp: Installation and Storage

Neo2 "Error Loading Operating System" solved

hi, i've been struggling with this frikkin error for a while now and i've finally figured it out, after reading a gazillion posts and not finding an answer i thought i should post mine here for anyone who gets the same problem
my setup: msi k8n neo2 platinum, amd 64 3500, some ram and vid card, 200GB SATA drive
PLUG YOUR SATA DRIVE INTO SATA3or4 if you only have one or two, SATA1and2 are unstable(for ocing) and just dont work for some folks
now you boot from windows xp cd, everything seems to be goin fine, pc reboots and BHAM! error loading operating system... ?!
well don't go and enable RAID in your bios (unless you really want to use RAID) just goto the bios --> integrated peripherals --> IDE function setup
now look for SATA1/SATA2 DMA transfer and SATA3/SATA4 DMA transfer, enable these, or at least the one that you're using
reboot, boot from windows cd, quick format the partition you want to install windows on, do the windows thing and reboot, viola! your windows installation should now be booting
if that doesn't solve your problem then i'm a greased weasel!
ps. another solution (that i used the first time round but annoyed me cos i'm really really obsessive about these things) is to run partition magic and clear the drive of partitions, then make a primary partition and a logical drive within that partition and set it to active, this worked for me
xcept i only use 1 HDD with two partitions, a smaller one that gets formatted all the time and off of which i run windows and a larger one that i keep all my stuff on, the trick was the put the booting partition at the end of the disk and not at the beginning like you usually would do, it's got something to do with the 1024 cylinder boundary but i don't understand that tho...

I had the same problem, easy solution, use Nforce 6.37 beta driver pack. and It will work OK! A way to enter the system is:
That is a probelm with SATA drivers, you may also install WIN XP making a disk for SATA driver from the Nforce 6.37 drivers in IDE\WINXP
Press F8,
Wait about 10 Secs.
Enter Normally, It may boot.
Regards
You may connect the SATA drive in either 1 - 2 or 3 - 4 Sata ports It will work OK, do not use DMA transfer it will make the Disk slower

"Error loading operating system" in windows 7 bootcamp

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