Pixelated/Scrambled screen during boot of Windows using boot camp

Occaisionally, when booting up my mac into Windows (Xp Pro 32 bit or win7 64 bit) I get a horribly scrambled/pixelated image and the boot ultimately fails. I'll have to retry sometimes many times in order for it to eventually boot correctly. If I stay in windows, there is usually no issue. However, if I boot from Mac to Windows, there is an issue almost EVERY time. The scambling for XP and win7 is similar but there are some differences.
With XP I get diagonal strips of partially pixelated lines right after the gray apple logo screen. Sometimes this will resolve on the XP loading screen and everything is fine. Other times, the lines persist and the load fails.
With 7, its a jumble of colored bars and flashing ?'s

I am having the same problem as of 3 days ago...while viewing internet in safari the screen turns greenish with pixalated images and then stalls....have to reboot many times to get to log on window...this is the first time I am having this problem

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Apples update didn't work for me: Boot Camp: iMac displays a black screen during installation of Windows 7

Boot Camp: iMac displays a black screen during installation of Windows 7 - Apple Support
I have followed each of the steps listed in the link above with no success.
Prior to adding the extra drivers I was able to start the Windows install process up to reformatting the "Windows" Bootcamp drive. After that the computer would go through some instal processes and eventually restart. After the restart the screen would go black. The black screen lead me to the Apple Support link above dated March 5 2015. After going through steps listed in the link above, I get an error message stating that the D:\Sources\instal.win. file cannot be located. I am forced to restart the computer at that point and theWindows install process attempts to start again but always ends up at the same point.
Note: I am installing windows 7 Pro from a DVD. I scanned the AutoUnattend.xml file and noticed that it refers to "Windows 7 ULTIMATE" but not "Pro" or any others that I could see. (see below). Could that be part of the issue?
Any feedback would be greatly appreciated.
<cpi:offlineImage cpi:source="wim:d:/sources/install.wim#Windows 7 ULTIMATE" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
</unattend>
iMac (27-inch, Late 2009)
2.66 GHz Intel Core i5
16 GB 1067 MHz DDR3
ATI Radeon HD 4850 512 MB

Here is an over-simplified explanation of WIM and CLG files. Assume your DVD Media contains
W7- Ultimate
W7- Professional
W7- Home Premium
W7- Home Basic
WIM Files
File1
y
y
y
y
File2
y
y
y
y
File3
y
File4
y
y
File4
y
y
y
The File .wim will contains a compressed image which contains File [1...5].
The W7-Ultimate .clg will have 5 entries, with all set to 'Y'.
The W7-Professional .clg will have 5 entries, with 'Y','Y','N','Y','Y'.
The W7-Home Premium .clg will have 5 entries, with 'Y','Y','N','N','Y'.
The W7-Home Basic .clg file will have 5 entries, with 'Y','Y','N','N','N'.
This allows a single .wim Image file on the DVD media to be used to install any of the 5 flavors of Windows. When you enter your product key, the Installer knows what specific W7 variant you have the key for and will tell the WIM to extract the specific files the installer needs to be extracted.
The following line
<cpi:offlineImage cpi:source="wim:d:/sources/install.wim#Windows 7 ULTIMATE" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
is telling that a retail product key will be entered, which should go look for this specific .clg file (from the five you already have on disk). You can test if it will work for you by changing this line to the following
<cpi:offlineImage cpi:source="wim:d:/sources/install.wim#Windows 7 PROFESSIONAL" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
If it does not work, the other issue can be related to device discovery. Typically A: and B: device names are reserved for Floppy Drives. C: is your internal HDD.
D: can either point to the Optical drive, or the USB. The normal convention is that the removable media is named from Z: backwards. Y: and Z: are usually used for Network drives, so X: should be your USB. First try with the change to "Professional". If it does not work,

IMac displays a black screen during installation of Windows 7

I tried to install windows 7 on my imac 27" but imac displays a black screen during installation of windows 7.
I also tried to install it as apples instruction of http://support.apple.com/kb/ts3173 but it failed.
Any solution please.. thanks
I have a late 27" imac with OS X 10.85

Here is an over-simplified explanation of WIM and CLG files. Assume your DVD Media contains
W7- Ultimate
W7- Professional
W7- Home Premium
W7- Home Basic
WIM Files
File1
y
y
y
y
File2
y
y
y
y
File3
y
File4
y
y
File4
y
y
y
The File .wim will contains a compressed image which contains File [1...5].
The W7-Ultimate .clg will have 5 entries, with all set to 'Y'.
The W7-Professional .clg will have 5 entries, with 'Y','Y','N','Y','Y'.
The W7-Home Premium .clg will have 5 entries, with 'Y','Y','N','N','Y'.
The W7-Home Basic .clg file will have 5 entries, with 'Y','Y','N','N','N'.
This allows a single .wim Image file on the DVD media to be used to install any of the 5 flavors of Windows. When you enter your product key, the Installer knows what specific W7 variant you have the key for and will tell the WIM to extract the specific files the installer needs to be extracted.
The following line
<cpi:offlineImage cpi:source="wim:d:/sources/install.wim#Windows 7 ULTIMATE" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
is telling that a retail product key will be entered, which should go look for this specific .clg file (from the five you already have on disk). You can test if it will work for you by changing this line to the following
<cpi:offlineImage cpi:source="wim:d:/sources/install.wim#Windows 7 PROFESSIONAL" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
If it does not work, the other issue can be related to device discovery. Typically A: and B: device names are reserved for Floppy Drives. C: is your internal HDD.
D: can either point to the Optical drive, or the USB. The normal convention is that the removable media is named from Z: backwards. Y: and Z: are usually used for Network drives, so X: should be your USB. First try with the change to "Professional". If it does not work,

HT201612 I was trying to install windows using boot amp but now I can't boot my MaOckbook pro again

I was trying to install windows using boot amp but now I can't boot my MacBook pro again

Go to the Windows Control Panel and select Boot Camp applet. In that applet there is a Boot Drive option. Select Mac OS X.
Or restart the system and hold down the Option key for a few second. A Boot Menu screen will come up. Select Macintosh HD.
Once in OS X go to the Sys Prefences, Startup Disk and select Macintosh HD Mt Lion 10.8.2 and click Restart then Restart again. the system will now restart in Mac OS X.
To boot back to Windows do the same, Startup Disk, and select Windows then Restart and Restart again.

I just bought a 15" macbook pro, do the cds that come with the mac have the drivers i need to update windows after installing windows using boot camp?

I just bought a 15" macbook pro, do the cds that come with the mac have the drivers i need to update windows after installing windows using boot camp?

What DVDs are this ?
If it is OSX Snow Leopard Installation DVD then yes this disc contains the BootCamp Drivers version 3.x and is needed after the installation of Windows to install the BootCamp Drivers.
With OSX Lion BootCamp is at version 4.x and the BootCamp Drivers have to be downloaded during use of the BootCamp Assistant in OSX.
Boot Camp 3.0, Mac OS X 10.6 FAQ
Frequently asked questions about Lion and Boot Camp 4.0
Stefan

Unable to open windows using boot camp. Get message "The bless tool was unable to set the current boot disk." Any thoughts, Thank you.

Unable to open windows using boot camp. Get message "The bless tool was unable to set the current boot disk." I am using an Imac , Lion operating system, and Windows 7. It worked a few days ago. Any thoughts, Thank you.

Note that nowhere in the Boot Camp instructions does it tell you to use Disk Utility to format the Windows partition. The Boot Camp Assistant program creates the partition & sets the +partition scheme info+ of the disk as appropriate for the Windows installer but the Windows installer itself is responsible for formatting the new partition with the appropriate +file system scheme+ (NTFS for Windows 7).
If you follow the instructions in the Boot Camp Installation & Setup Guide to the letter you should have no problems installing Windows.

I made a mistake. i installed windows using boot camp without os x lion dvd. what should i do? help pls

i made a mistake. i installed windows using boot camp without os x lion dvd. what should i do? help pls
Re: can i install windows for pc on my mac or do i need the windows for mac?

There is no Lion DVD. Start Boot Camp Assistant and select the menu item to download the Windows Support Software.
Read and follow the Boot Camp Installation Guide. http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf

If i create a partition for Windows 7, and boot up in Windows using Boot Camp, can I still access the files from the Mac partition (Photo's Music etc.)

If i create a partition for Windows 7, and boot up in Windows using Boot Camp, can I still access the files from the Mac partition (Photo's Music etc.)

JDFitch wrote:
Ok Great,
Will installing Boot Camp drivers allow me to both read and write to the OS X Volume from windows?
This is important as if it will it means i can make the windows partition a lot smaller and keep all my files on the OS X partition which would be preferable.
Jon
No, OSX will be read only (from Windows) and vice versa. (you can install 3rd party utilities on either or both partitions, to make read/write possible)

HT4818 What is the best Partition size for a windows 7 Home Premium. I'm trying to install Windows using Boot camp

What is the best Partition size for a windows 7 Home Premium. I'm trying to install Windows using Boot camp

Go into your system preferences and click the startup disk icon then select your Mac HD.

HT5446 If I buy a mac mini with a fusion drive and add windows using boot camp, can I make the SSD function be dedicated to the windows partition?

If I buy a mac mini with a fusion drive and add windows using boot camp, can I make the SSD function be dedicated to the windows partition?

Additional information from Linc's post. Basically, only one additional partition can be added to a Fusion Drive and it resides on the HDD.
Do computers that come with a Fusion Drive support Boot Camp?
Yes. Use the Boot Camp Assistant to create a Windows partition and install Boot Camp. The Windows partition will exist on the hard disk drive, not the Flash drive, and is not part of Fusion Drive Logical Volume Group. 3TB Fusion Drive configurations need to update to OS X Mountain Lion v10.8.3 or later to install Windows 8. See iMac (27-inch, Late 2012): Boot Camp alert with 3T hard drive for more information.

Missing 1280 x 800 in Windows using Boot Camp

Hi there. I have a 2009 Mac mini with nVidia graphics. I'm using an Acer X223w widescreen LCD monitor. In OS X I am able to select 1280 x 800 for my screen resolution. In Windows 1280 x 800 is not an available option. I looked for drivers for this monitor but there are not any for WIndows XP. Does anyone have any ideas as to how I can use 1280 x 800 in Windows XP?
Thanks.

With Windows, it may not be the Monitor, but the Display Adapter. Go to Start>Control Panel>Display>Settings>Advanced>Adapter. If the correct adapter is not installed, it may affect what resolutions you can display. A Monitor can be seen as a generic device, like the Wide Screen Monitor at my job, and there are options available to display wide screen because Windows has the correct display adapter installed. If you need the drive, go to http://www.nvidia.com/Download/index.aspx?lang=en-us
and use Option 2: Automatically find drivers for my NVIDIA products.
I hope this helps.

Booting bootcamp windows using a virtual pc application in macosx

Hi everybody,
Is it possible? I sometimes need to run windows natively, but most of the time I do not. Do you know any virtual pc program that I can use for this?
thank you very much...

hi - i don't really understand your question, but if you're asking if it's possible to run a windows application without booting into windows via BootCamp, the answer is yes!
http://www.parallels.com/en/products/desktop/
this also allows you to run linux etc on your mac...
cheers

Installed Windows using boot camp but lost my mac disc mid setup!

I am on a Macbook Pro running Snow Leopard and used Boot Camp 3.0.4 to try and get Windows 7 on it. I partitioned the hard drive and successfully installed Windows 7 on my comp using my Windows 7 CD. However, being the overeager moron that I am, I did so without ensuring that I have a Snow Leopard CD. So now I am stuck in Windows. Anybody got any solutions for a dumb man?

you are not stuck.
the default OS is set to the Windows volume
hold down x on startup
or hold down option key after the chime sound and wait for the startup selector
when you get to OS X then go to Startup Disk control in system preferences

How to add another operating system for Dual boot in Windows 7 boot configuration

Hi,
I have dell laptop with excellent configuration. On which i had windows 7 Home premium on C Drive and Windows server 2008 on D Drive.
Now i upgraded my Windows 7 Home Premium 32 bit to Windows 7 Ultimate 64 bit. But after fresh installation of Win 7 Ultimate my dual boot screen has gone and Win 7 is getting start directly.
Now i want to add my Windows server 2008 again for dual boot which is still on D Drive.
Can anyone please tell me how to add windows 2008 boot option in boot configuration to active my dual boot options.
Thanks

1) Using bcdedit.exe /enum
To enable the computer to also boot Windows 7 you again use bcdedit.exe with the following command which will copy the current Windows
Boot Loader details for Windows Server 2008 to Windows 7.
bcdedit.exe /copy
{current} /d "Microsoft Windows 7"
bcdedit.exe will
respond with something like the following.
The
entry was successfully copied to {................................}.
Using
bcdedit.exe /enum to again enumerate through the current entries within the BCD store you'll see the newly added entry.
Before you can use the newly created Windows boot loader configuration, you'll need to change the partition for Windows 7 using
the following two bcdedit.exe commands.
bcdedit.exe /set {.................................} device partition=D:
bcdedit.exe /set {.................................} osdevice partition=D:
If you now reboot the system you should now be able to boot into either Windows Server 2008 or Windows 7.

Simple UEFI GPT Dual boot with windows 8 boot partition question.

Hi everyone,
I think it's obvious from the quuestion that I'm a newbie here (and from the location of the post) but I have read (several times):
https://wiki.archlinux.org/index.php/UEFI
https://wiki.archlinux.org/index.php/UEFI_Bootloaders
and the incredibly helpful:
https://wiki.archlinux.org/index.php/Beginner%27s_Guide
along with many forum posts. unfortunately this:
https://wiki.archlinux.org/index.php/Wi … _Dual_Boot
appears out of date and so I need to ask you fine people my question.
If I want to dual boot Arch with my Windows 8 my question is on the boot partition. I have an existing windows EFI boot partition. should I mount this partition to my "/mnt/boot/efi" folder and then copy the files to this partition when I am setting up rEFInd (my chosen bootloader from wiki page, comments/suggestions are welcome) or should I setup a separate boot partition for my arch installation. I assume from reading about rEFInd that the former is how I should do it as this seems to be how refind would be able to "see" my windows bootloader.
The reason I am double checking and asking here is I know that windows can be a temperamental beast and is very prone to not booting so I don't want to mess with the windows boot partition unduly.
Thanks in advance guys, looking forward to getting my arch working!
Last edited by crashandburn4 (2013-03-03 13:42:43)

$esp = EFI System Partition?
also, ok, gummiboot, I'm glad I can mount the esp as /boot (that was my original thought but reread the tutorial and wasn't sure) just double checking, it is the esp created by windows 8 that I mount?
in addition, as I am slightly new to this is there any tutorial that can tell me how to set up gummiboot? I've looked here:
http://freedesktop.org/wiki/Software/gummiboot
but don't see anything in the way of detailed instructions.
from your post: https://bbs.archlinux.org/viewtopic.php?id=159061
I'm gonna guess it's something like this (please let me know if this is right)
/mount $ESP /mnt/boot
pacman -S gummiboot
(after chrooting)
//exit chroot
gummiboot
*stuff saying gummiboot is not configured*
gummiboot install
is it something like that? can anyone point me towards a manual
Last edited by crashandburn4 (2013-03-03 14:58:53)

Pixelated/Scrambled screen during boot of Windows using boot camp

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