Jump to content
Welcome to InsanelyMac Forum

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

Sign in to follow this  

How to upgrade the Windows HD on a dual-boot computer?

5 posts in this topic

Recommended Posts



I need to upgrade my Windows OS from Vista(x64) to Windows 7(x64) on a dual-boot computer.


I didn't build the computer myself, and don't want to screw up the Macintosh side when I do the upgrade.


This is not Apple hardware.


When I boot up I am pressented with a non-windows boot menu, which lists OS X Leopard and Windows Vista.


I'm trying to understand if this boot menu is launching from the OS X hard drive.


If I disconnect the power and SATA cables from the OS X hard drive, I don't see any boot menu, and the computer boots directly into Windows.


Would a Windows upgrade install be as easy as unplugging the OS X drive and running the installer, or am I missing something?


Thanks in advance,




Here is an image of my disc management in Vista:


Share this post

Link to post
Share on other sites

Option 1:

Change the boot drive in BIOS (set the Vista HDD to be the boot drive) and install W 7


Option 2:

Disconnect the OS X HDD and install W 7 (Like you did)


The strange boot menu you see when OS X drive is connected, is Chameleon boot loader. It is used to run OS X on non Apple computers. In your case it is installed to the same disk as the OS X itself.


Bottom line disconnect the OS X drive and install W 7.

Share this post

Link to post
Share on other sites

Thanks for the info...


I've included some screen shots of the boot menu, and the BIOS.


I'd like to do the Windows upgrade by disconnecting the OS X drive.


Will the Psystar boot menu then work by clicking on the Vista choice to boot 7?

(Is this label just a link to BIOS Hard Disk Boot Priority # 2. SCSI-1?)





Share this post

Link to post
Share on other sites
Will the Psystar boot menu then work by clicking on the Vista choice to boot 7?

(Is this label just a link to BIOS Hard Disk Boot Priority # 2. SCSI-1?)

AFAIK Psystar is a commercial ripoff of Chameleon bootloader.


Try disconnecting the Windows drive (with OS X disk still connected) and boot up. If Vista would still be present, then it may be preconfigured somehow (I doubt though that it could be preconfigure by setting the particular disk in boot order, most likely it could be configured by UUID of the Windows OS). If not, then it's dynamic option. You may also try inserting a Linux/Windows install disk and see if the disk appears in the Psystar boot menu and if it does, then it for sure could be the dynamic menu. I'm not too familiar with Psystar products.


As for Chameleon, it has a dynamic menu which change depending on the disks present in the system and it uses disk/partition label to display disks in the boot menu. Sure it has an option to rename disks...


Anyway, the safest way is to install Windows with OS X disk DISCONNECTED. It's quite unlikely that you could brake anything this way.

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By rtke333

      Could anyone help me installing High Sierra on this system?
      I succesfully installed Sierra before on this system with help of Jake Lo (thanks!!), I just wondering if could High sierra possible to installed on this system?
      Boot stopped at this. I'll attach my Clover folder and a picture from boot.
      UEFI enabled, and for skylake I used IntelGraphicsDVMTfixup and IntelGraphicsFixup kexts. My bios is very limited and does not have any option to change dvmt prealloc or anything else.
      Everything works fine on Sierra.
      Here is my system:

      Acer Aspire V15 V5-591G-55TU
      (Note: Bootpack works fine with another versions of 591G, for example: V5-591G-71K2, -764Z, -59PU, etc.)

      Mobo: Skylake USOPP_SLS
      Bios: Insyde corp latest version
      CPU: Intel Core i5-6300HQ 2.30 GHz (Skylake)
      GPU: Geforce GTX 950M 2 GB (optimus, disabled), Intel HD 530
      Ram: 8 GB DDR4 (4+4 GB)
      Wifi: Qualcomm Atheros QCNFA344A, Replaced to BCM94352Z
      Ethernet: Realtek 8168B/8111B
      Audio: ALC 255 (layout-3 fix)
      Card Reader: Realtek
      HDD: 1 TB
      Dual-boot with Windows 10

      Any help appreciated!

      UPDATE! (2017.10.30)
      UPDATE! (2017.11.09)
      UPDATE! (2018.02.01)

      Successfully installed High Sierra 10.13, 10.13.1, 10.13.3
      (Original OSXLatitude post link: http://forum.osxlatitude.com/index.php?/topic/10077-success-acer-aspire-v-15-v5-591g-55tu-high-sierra-dual-boot-windows/)
      Wi-Fi and Bluetooth with BCM94352z: (enabled with BrcmFirmwareRepo.kext, BrcmPatchRAM2, FakePCIID.kext, FakePCIID_Broadcom_WiFi.kext, install them with Kext Utility or another kext installer) (Original WiFi is Qualcomm Atheros, unsupported but BT works) Hand-off with BCM94352z Full Graphics enabled on HD 530, HDMI, VGA. ALC 255 Audio: (Internal Speakers, Internal Microphone, Headphone jack (microphone not tested) with layout-3 fix (you can use AppleHDAPatcher) Ethernet Realtek 8168B/8111B App Store, Messages, FaceTime, Siri, iCloud (native) Integrated webcam (native) 3.0 USB (native) Touchpad and Keyboard: Fn keys are good, the weird thing is the Brightness key. On my keyboard it's Pause Break:Br-up, Fn+F12:Br-dwn. (VoodoPS2Controller.kext) Battery info: Install ACPIBatteryManager.kext with kext utility or other installer. Sleep Mode: In High Sierra sleep mode not worked for me natively. Inject custom EDID to fix the blank screen after wake from sleep
      See here for instruction (thanks black.dragon74 and Jake Lo !!) Please add these 2 patches to ACPI\DSDT\Patches in your config.plist in order to avoid not responding applications after sleep: (added in "v5_591g_55tu_updated_CLOVER.zip") HECI to IMEI 48454349 494d4549 EC0 to EC 4543305f 45435f5f Before updating to a new version of High Sierra please update kexts to new versions to avoid kernel panics Note: No need for "IntelGraphicsDVMTFixup.kext" so you should delete it. Not working:
      Original Wi-Fi: Qualcomm Atheros QCNFA344A unsupported, you need switch to BCM94352Z or just use a mini usb wifi dongle. NVIDIA GTX 950M: Optimus not supported. Card Reader: Unsupported For WiFi:
      You can choose an external USB wifi dongle (I used tp-link Archer T1U (5GHz support), Tp-link have official macOS drivers, you just need to install it (OR)Replace your M.2 Qualcomm Card with a compatible BCM94352Z card (you will have hand-off Bluetooth too), just install the kext I wrote above I'll attach my EFI folder for anyone who want to install High Sierra (acer_aspire_v5_591g_55tu_hs.zip).
      *REUPLOADED updated CLOVER folder, attached as "v5_591g_55tu_updated_CLOVER.zip" (uploaded to OSXLatitude forum, can't upload here).
      I'm using High Sierra in Dual-boot with Windows 8.1. To do this in a clean install or with Windows installed first try my little minimal guide:
      Dual-boot clean install (on one drive):
      1. Boot into your Mac installer, Create 2 partitions in GUID table (1 for Win (I used FAT32 but I think it's no matter what), 1 for Mac), 
      2. Install Mac, boot with your USB, *mount your EFI partition (use terminal or an EFI mounter app), create an EFI folder, copy the CLOVER folder I attached to the EFI folder, restart,
      3. Boot into your Win installer, Format the partition you created for Win, install. 
      4. Now, it's automatically booting into Windows. To use Clover open cmd in administrator, type:
      bcdedit /set {bootmgr} path \EFI\CLOVER\CLOVERX64.efi 5. You're done! It will booting into Clover when you start the system, and you can select Win or Mac (or another OS if installed on a 3rd partition).
      Dual-boot with Windows installed first (on one drive):
      If you already have Windows and you don't want to lose all your data there is a hope:
      You need bootable Mac Installer and a full system restore image (you can search for it).
      (You may see errors if your EFI partition is not 200 MB)
      1. Boot into your Windows, resize your partition or create one for Mac.
      2. Boot into your Mac installer and in Disk Utility format the partition you created.
      3. Restore from image: select your full system restore image.
      4. When it's finished restoring you just need to restart, then boot to the system with your usb.
      5. Do Step 2. from "*" from clean install dual-boot above. but KEEP "Microsoft" FOLDER IN IT!
      6. Do Step 4. from clean install dual-boot above.
      7. You're done! You can select your old Windows and your new macOS!
      (I only tried with Windows 8/8.1/10. I don't know Windows 7,etc.)
      Make sure you have partitions in GPT The best version for restore method is Windows 8.1. It's using 200 MB EFI. Windows 10 using 100 MB EFI and will annoy the Mac restore. You can use with Windows 10, just ignore the errors IF YOU GETTING ERRORS DURING WINDOWS INSTALLATION (could not be formatted, etc):
      Make sure you have GPT partitions, and GPT installer IF YOU USED RESTORE METHOD THEN CAN'T MOUNT YOUR EFI PARTITION (No EFI partition found)
      It's because your EFI is not 200 MB or not an "Apple" original EFI,  but do not worry, try another EFI mounter, or mount from terminal (I used EFI mounter v3: Getting errors, but you can mount and use without problem) You also could "mount" the EFI from windows, for that open cmd and type: diskpart list vol (Now select the "System" volume,(FAT 32) For example I select 4) sel vol 4 list part (Select System type partition, for example 2) sel part 2 assign letter=b (This will "mount" your EFI partition, to manage files download totalcmd or explorer++ (run as admin)) remove letter=b (This will "unmount" your EFI) Here is a video from dual-boot with Windows installed first (on one drive):
      Here some pictures:

    • By Allan
      Hello guys.   As some of you know, the option fast startup cause some problems in dual-boot Hacks, this happens because the Hibernation mode. But is possible you keep the fast startup on, and disable Hibernation: 1 - powercfg /h /type reduced This command line will reduce the size of hiberfile.sys file, in simple words, will cut the file in the half.
      Some people recommend solve that by using this command line bellow:
      2 - powercfg /hibernate off But if you do that, you'll disable Hibernation and Fast Startup.
      Use the first command line in Command Prompt (Admin) above (1º), and you'll enjoy this great resource in your dual-boot. 
    • By goodflood
      I am struggling to install Windows 7 64 bit on a new computer. The storage is M2 and it has 8 GB RAM.
      The system is assembled by a company and not much information about the mobo is available.
      I simply want to install windows 7, preferably only... but I could leave an untouched Mac version on a partition if needed.
      Is this something Clover will be able to help me do?
      I have read many guides but a lot of them talk about dual-booting with macOS.
    • By Angelo_
      HI, i've installed high sierra a while ago and never really used it that much but i got bored of w10 so i've decided to use it as my daily driver for a while and i noticed that usb 3.0 ports don't work with usb 3 devices and only with usb 2.0 devices(capped at the 480mb/s limit of usb 2.0), is there a way to get past that? i couldn't find it in this forum, i don't need the speed that much for right now(even tho i might since i shoot in raw and usb 2.0 is slow for file transfer of big photos or videos i take on holidays or on days off)  but i'd like to at least be able to use the usb 3.0s with my usb 3 devices and hub. 
      Hope that i write this post correctly, english is not my main language.
      ps  i don't need because i'm on lan but does it exist a driver/kext for intel wifi/bluetooth combo integrated in my z87 mpower(centrino 2200) ? bluetooth works already.
    • By MaLd0n
        First... If you need DSDT edits... -Post your full Clover folder with original tables in Origin folder(Extract with F4 in Clover boot screen) -Post Ioreg, extract with Ioreg Explorer http://www.insanelymac.com/forum/index.php?app=core&module=attach&section=attach&attach_id=222606 -Run it, post files generated in your desktop http://www.insanelymac.com/forum/index.php?app=core&module=attach&section=attach&attach_id=222609  Installation   --Create a bootable copy of macOS Sierra Check out the link http://www.insanelymac.com/forum/files/file/559-flash-drive-maker/   --Create a bootable copy of macOS HighSierra Check out the link http://diskmakerx.com/   --Install Clover in USB stick https://sourceforge.net/projects/cloverefiboot/files/Installer/   --Replace with my Clover folder  CLOVER.zip   --Install Sierra/High Sierra and boot into system!   Post Installation   --Install Clover in HDD/SSD and replace with my folder CLOVER.zip   --Reboot and activate video!   -Nvidia WebDriver Sierra http://www.insanelymac.com/forum/topic/312525-nvidia-web-driver-updates-for-macos-sierra-update-07212017/ -Nvidia WebDriver High Sierra http://www.insanelymac.com/forum/topic/324195-nvidia-web-driver-updates-for-macos-high-sierra-update-10162017/ -Cuda http://www.insanelymac.com/forum/topic/302795-cuda-90214-is-out-update-10162017/   -DSDT My DSDT DSDT.GA H97M-DS3P MaLd0n.zip   -Patches -FIX ERRORS AND WARNINGS -HPET -SATA -DMAC -SLPB -DARWIN -LPC -XHCI -HDEF -RTC -IRQs -SBUS -MIKEY -BUS1 -MCHC -ALS0 -SHUTDOWN -LAN -EC -PNLF -HDMI

      https://bitbucket.org/RehabMan/os-x-fakesmc-kozlek -Audio https://github.com/vit9696/AppleALC -LAN https://github.com/Mieze/IntelMausiEthernet   -Credits and thanks to the old and new people in the community who developed patches, kexts and bootloaders!   Slice, Kabyl, usr-sse2, jadran, Blackosx, dmazar, STLVNUB, pcj, apianti, JrCs, pene, FrodoKenny, skoczy, ycr.ru, Oscar09, xsmile, SoThOr, RehabMan, Download-Fritz, Zenit432, cecekpawon, Intel, Apple, Oracle, Chameleon Team, crazybirdy, Mieze, Mirone, Oldnapalm, netkas, Elconiglio, artut-pt, ErmaC, Pavo, Toleda, Master Chief and family, bcc9, The King, PMheart, Sherlocks, Micky1979, vit9696, vandroiy2013, Voodoo Team, Pike R. Alpha, lvs1974, Austere.J, CVad and many, many, many others!   We're all here to have fun and learn from each other!   ENJOY!