Bootcamp: Windows 7 not booting on 4gb ram

Hi!
Situation:
I installed Windows 7 via Bootcamp. On 2gb ram (2x1gb or 1x2gb doesn't matter) windows boots fine.
I upgraded to 4gb ram (2x2gb) and now Windows is not booting. As far as I know, it's not even getting in DOS.
There's just the cursor blinking into infinity...
What I've tried so far:
Installing windows with 2gb and ugrading to 4gb.
Installing windows with 4gb
Tried the 32bit and the 64bit version
Found a 'solution' on the web making me boot in safe mode in order to change the maximum ram windows accepts.
Attributed more gb to the windows partition
I'm out of ideas, what do you think?
regards,
Massimo

While we all have MacBooks in this forum not all of us use BootCamp. There's a BootCamp Support Community where everybody uses BootCamp. You should also post this question there to increase your chances of getting an answer.
https://discussions.apple.com/community/windows_software/boot_camp

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Windows 7 not booting with 4gb ram

Hi!
Situation:
I installed Windows 7 via Bootcamp. On 2gb ram (2x1gb or 1x2gb doesn't matter) windows boots fine.
I upgraded to 4gb ram (2x2gb) and now Windows is not booting. As far as I know, it's not even getting in DOS.
There's just the cursor blinking into infinity...
What I've tried so far:
Installing windows with 2gb and ugrading to 4gb.
Installing windows with 4gb
Tried the 32bit and the 64bit version
Found a 'solution' on the web making me boot in safe mode in order to change the maximum ram windows accepts.
Attributed more gb to the windows partition
I'm out of ideas, what do you think?
regards,
Massimo

While we all have MacBooks in this forum not all of us use BootCamp. There's a BootCamp Support Community where everybody uses BootCamp. You should also post this question there to increase your chances of getting an answer.
https://discussions.apple.com/community/windows_software/boot_camp

More detail and a reply for the CQ50 - 130US will not boot with 8gb ram post

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The difference between 4GB and 6GB is that with 6GB system runs faster and the display quality has improved. I have set the cache size to large and the executive paging is set to off in the registry. The menu(System Properties - Performance Options – Advanced – Virtual Memory) is set to automatically manage the paging file size.

You should keep it in the original; thread you started.
http://h30434.www3.hp.com/t5/Notebook-Hardware/CQ50-130US-will-not-boot-with-8gb-ram/m-p/490157

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Do you have that problem when running in the Firefox SafeMode? <br />
[http://support.mozilla.com/en-US/kb/Safe+Mode] <br />
''Don't select anything right now, just use "Continue in SafeMode."''
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Hi,
I got after couple of years perfect comp. an terrible problem. The Windows will not boot, i can start it only with CD or sometimes i am getting message: how I wish to start Windows . I already tried to repair it, but no success. In the event log I could see only one notice : Service Control Manager event 7026, but this I had before with perfect comp.
Thanks in advance

Hi guys.
here i foud the cure:
* Power off the PC
* Power off the monitor
* Disconnect all cables from the monitor (USB, power, etc.)
* Disconnect all monitor cables from the PC (USB, VGA, DVI, etc.)
* While disconnected, press and hold the monitor power button down for 3 seconds
* Reconnect the power cord to the monitor
* Reconnect the monitor VGA or DVI cable to the PC video card
* Power on the monitor if it does not power on by itself
* Power on the PC
* Once into windows, open the Device Manager (Press the Windows key and the Pause-Break key)
* Click the Hardware tab
* Click the Device Manager button
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Message Edited by DELL-ChrisM on 12-07-2007 02:47 PM

Bootcamp - Changed partition settings now Windows will not boot

Hi,
I suspect I've created a problem that I've made progressively owrse in trying to solve... Any help appreciated!
A month ago I created a bootcamp partition (about 850Gig OS X and 150Gig for Win7), successfully installed Windows 7 and everything was fine.
After an acciental delete of itunes media incident I thought I would create a Time Machine backup partition on the OS X part of the drive so used the Disk Utility to do so, making sure I "took" from OS X and not the Bootcamp partition. I now had three partitions: OS X (500Gig), a Backup (350Gig) and a Bootcamp (150Gig) (I now suspect some of you might be screaming I've created the problem here already...) noting that the 150Gig Bootcamp partition is still as it was and the diagram in Disk Utility has always shown it as the bottom section.
Perhaps I'm being naive here but it never occured to me that splitting the OS X partition would have any impact at all on the Bootcamp partition!
Anyway, now I'm unable to boot to Windows (black screen "No bootable device" etc message).
Checking Finder, all the files on the Bootcamp partition still seem to be there - User settings/accounts, Program Files, the lot.
Is there anyway I can easily rectify this? (eg put the Windows 7 disk in and repair the install or something?!)
I tried deleting the extra Backup partition I created without luck (the space just gets greyed out and unallocated)
Help! I really don't want to have to go through the whole mess of reinstalling Windows 7 on to the Bootcamp partition (that to my mind still hasn't been touched!)

Your Boot Camp partition number probably changed, Windows does not like more than 4 partitions, you had 3 + Lion Recovery and one that Windows makes, and that is one too many.
You can try running Windows startup repair from the disk, but>
Before you do anything make a backup (a clone, for speedier disaster recovery)
If startup repair fails then reinstalling Windows is called for, so while you are at it I would repartition the drive completely, put your Lion installation back on the Mac from your clone, make a new prtition in Boot Camp and reinstall Windows. Then if you have backups of the Windows side (Windows Backup or similar) restore the data.

Macbook pro does not boot after upgrading ram

I have a macbook pro late 2011 which runs with mavericks operating system . I have tried to upgrade my macbook to 8Gb. Macbook does not boot when the two ram slots are filled with 4GB ram but runs well when the slots are filled with 2GB ram. When i try them individually with one slot of 2GB ram and another slot with 4GB they run perfectly which shows status ok in the RAM info. What could be the problem .

Around here, most of us recommend only Crucial and OWC for RAM because it's guaranteed to work with Macs and it's what most of us have. If I were you, I would return the RAM and look at purchasing RAM from either Crucial or OWC. If you can't get their RAM to work then you'll know that there's some trouble with your actual slots.
Good luck,
Clinton
MacBook Pro (15-inch Late 2011), OS Mavericks 10.9.4, 16GB Crucial RAM, Crucial M500 960GB SSD, 27” Apple Thunderbolt Display

New Hard Drive, Mac partition cloned and boots fine, but I can't seem to get my BOOTCAMP (windows) partition to boot! Any ideas?

Hello all!
I got a new hard drive for my Mac Book Pro and an enclosure so I could clone the old partitions on to the new drive.
So I...
Put the new hard drive in the enclosure.
Booted up off an install disk and ran disk utility.
Copied the Mac and Bootcamp partitions over to the new drive that was connected VIA USB.
Turned off the computer, took the old hard drive out and put it in the enclosure.
Put the new hard drive in the Mac Book Pro.
Booted into Mac OSX with no problem.
When I rebooted held down the option key to boot into the windows side, it didn't show up as an option.
When I went back into the Mac side, I loaded Disk Utility and saw that I had the Mac partition, the BOOTCAMP partition, and a bunch of unallocated space. When I went into the System Preferences and set the target boot drive to the BOOTCAMP partition and restarted, I got some crazy error about there not being any bootable info on it.
That's where I am at. I have found other posts with people who are having the same problem, but I have yet to find a solution that doesn't involve me buying some 3rd party software. I know it has something to do with (what is called in Microsoft world) the Master Boot Record, but I don't know how to modify that to reflect that the BOOTCAMP partition is a bootable logical drive. I remember in MS DOS land there was some command line FDSK /something command that you would run (I think it was /MBR) to reset the MBR. To me though, all of these terms are shadowy figures in the Ether.
What do I do???
-Ricardo
p.s. I read somewhere to boot off the windows 7 disk and run the system repair tools. I tried that and no change.

I got it. It CAN be done. At least on 10.6
How I made it happen (for free) on Snow Leopard:
1) partition, dupe etc all that jazz that you know. Make the mac side work, which it seems we've all been able to do no issues. I used SuperDuper! It worked just fine. (Had it on a disk. I assume you could use any other free way of doing this.)
2) New hard drive running, I used bootcamp assistant to partition the new drive for a new Bootcamp. I don't know if it's necessary to make the new partition this way for some reason, but it's what the process ultimately included, so maybe try without, but it worked with.
3) Natively running original drive on the windows side. Used DirveImage XML to clone windows partition onto new drive connected externally.
4) Back on new hard drive running natively. (Sorry for all the switching.) You'll note that the new Bootcamp partition is NOT bootable at this point. It won't come up in the usual 'alt on startup' boot menu.
Download rEFInd and install on mac side. Technically this is freeware or w/e, but for the love of god, throw money at this man. He totally deserves it.
5) Restarting the computer, rEFInd's boot manager finally recognizes windows. But you'll find windows is a little messed up and still won't quite boot. Get out your Windows CD and pop it in. Do the 'alt boot' thing. Your boot menu options are now "EFI Manager," "Bootcamp," and "Windows Disk." Or some such. Holy Crap! It recognizes Windows!
6) Boot to the CD and tell it to repair the windows volume. It will. My computer also had to do a disk check next time I booted to Windows, which took for-stupid-ever, but eventually worked. (I went to bed in between.)
7) Everything is running smoothly. Plus, you get the rEFInd boot manager, which is also great.
Deets: I have a late 2010 MBP 13". Snow leopard/Windows 7 32-bit (long story) Moved from original 320GB seagate momentus to new 750GB Seagate Momentus XT.
Feel free to share/copy&paste this solution as you see useful. Cheers!

Problem: PC crashed windows 7 Not booting. toshiba sattelite A665-S6086 win 7 64bit.

Hi, please help.
I need to recover win 7, no media recovery disk, and HDD is not booting although I took off the HDD and connect it to other PC, I can see everything the HDD, seems no problem ( it has 3 partitions 1.4GB : recovery ( I cannot access it) and 450GB (Main drive- I can acccess all of the data) and 3rd partition.
I have satellite A665-S6086.
PC fell, screen is broken and windows will not start . I used external Monitor.
(system is: win 7 64 bit home premium-EN).
I don't have media dvd for recovery.
I tried another win 7 version, is booted from CD, but I did not contiue, because it is wrong version, and I need the same to be restored.
From bios setup it sees the HDD.
When I boot it on external monitor, it gives toshiba logo for short time and goes to curser screen and stops responding.
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Satellite A665-S6086
That procedure is described in the section Recovering to out-of-box state (recommended recovery method), which begins on p. 63 of the User's Guide.
Satellite A660 Series User’s Guide
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Windows installer not booting after boot camp partition

I'm running OSX 10.9.4 and trying to boot camp windows 8. Everything is going right up until after the partition when the Mac restarts. It goes back to OSX and doesnt launch the windows installer.

I haven't really kept up lately but the only thing I see missing in your information is you didn't say if you had Formatted the Boot Camp partitiion to NTFS. The last I looked into Boot Camp that was one of the mandatory things you had to do in order for the installer to "see" the partition.
You end up formating it twice.
The original format when you make the Windows partition should be "Mac OS Extended (Journaled)" it's done by the Mac (BootCamp) then when your booted from the Windows installer you then have to format it again with the NTFS format. And of course it has to be on an internal drive. And a full install disk not an upgrade disk. Boot Camp 5?
Take a gander at the instructions again and see if you might have missed a step?
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Hello.
I am trying to reinstalling Windows 8.1. pro on my macbook with Yosemite.
When I initially installed Windows, it went fine, but Windows corrupted my booting process.
So I tried to fix it with gdisk command to create hybrid mbr, but I was not able to fix the problem.
So I deleted the Boot Camp partition using Boot Camp Assistant.
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I have booted up Windows installer using the same usb on pc, so I know that the usb containing Windows installer does work..
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Is it possible to create the disk using BCA and a Windows ISO on the Mac, if your Mac supports it? If your Mac has a built-in Optical drive (or used to have one), you are going to run into issues.
Can you
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3. PRAM Reset - OS X Yosemite: Reset your computer’s PRAM
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Bootcamp: Windows 7 not booting on 4gb ram

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