wasdavedead Posted August 24, 2009 Share Posted August 24, 2009 I'm trying to do a dual boot,Win7 and OSX. I'm using ATIOKs7 and 7 7100 build. I'm using Acronis disk director. Using Acronis I was able before to get ride of the Windows 7 100mb boot partition. I can't remember how I did this before tho. It seems everytime I made a partition with Acronis, 7 can't install on it anymore. I make a NTFS 500GB partition and it's set to active/primary and 7 will not install on it. Any thoughts? Link to comment https://www.insanelymac.com/forum/topic/181315-getting-rid-of-win7-100mb-boot-partition/ Share on other sites More sharing options...
srs5694 Posted August 24, 2009 Share Posted August 24, 2009 You seem to be asking two questions. Your first question is about what you're calling a 100MB "boot partition" for Windows. I believe you've misidentified this partition. Recent versions of Windows like to create a 100-200MB partition that serves as a recovery partition. This is not a boot partition per se, although I admit I don't know precisely what it's for. I also don't know what would happen if you'd just delete it. Windows doesn't require such a partition, though, at least not from a fresh install -- you can install Windows on a disk with a single partition. My understanding is that it'll then store the data that would otherwise go in the recovery partition on its main partition. My Windows 7 RC setup works this way. It's got a directory called C:\Recovery, which presumably has this data. In my case, it's 163MB in size. If you haven't already installed Windows, or if you've done so but are willing to re-install, I recommend you just create a partition layout with one primary NTFS partition and the rest of the space tied up in some non-Windows partition type. (Type 0xAF is ideal, if you can set arbitrary partition types, since that's the code for an HFS/HFS+ partition.) That brings us to the second question. It's been a while since I installed Mac OS, but I expect you'd have the best results either setting up a type-0xAF partition or leaving empty space and using Disk Utility as part of the install process. Personally, I use Linux and Linux disk tools a lot, so I probably did this with Linux fdisk. GParted, a GUI Linux tool that's available on Linux emergency disks like Knoppix or System Rescue CD, will also create HFS/HFS+ partitions. I have no idea if the Acronis software you're using will do the same. Link to comment https://www.insanelymac.com/forum/topic/181315-getting-rid-of-win7-100mb-boot-partition/#findComment-1233557 Share on other sites More sharing options...
jasim Posted August 25, 2009 Share Posted August 25, 2009 I'm trying to do a dual boot,Win7 and OSX. I'm using ATIOKs7 and 7 7100 build. I'm using Acronis disk director. Using Acronis I was able before to get ride of the Windows 7 100mb boot partition. I can't remember how I did this before tho. It seems everytime I made a partition with Acronis, 7 can't install on it anymore. I make a NTFS 500GB partition and it's set to active/primary and 7 will not install on it. Any thoughts? I have got rid of this partition using acronis disk director coming with Hiren's boot CD 9.9. And I am sure u can install Windows 7 on a single partition.. If u have created 500GB partition using Acronis, It may be of version NTFS V5.1, You can try formating it to NTFS V6.0 using default diskpartition tool in Windows 7 Installer... also try this hack if previous one doesn't work.. Windows 7 Insists on 100 MB or 200 MB system partition, Here's how to avoid creating this system partition Your first question is about what you're calling a 100MB "boot partition" for Windows. I believe you've misidentified this partition. Recent versions of Windows like to create a 100-200MB partition that serves as a recovery partition. This is not a boot partition per se, although I admit I don't know precisely what it's for. I also don't know what would happen if you'd just delete it. Windows doesn't require such a partition, though, at least not from a fresh install -- you can install Windows on a disk with a single partition. My understanding is that it'll then store the data that would otherwise go in the recovery partition on its main partition. My Windows 7 RC setup works this way. It's got a directory called C:\Recovery, which presumably has this data. In my case, it's 163MB in size. If you haven't already installed Windows, or if you've done so but are willing to re-install, I recommend you just create a partition layout with one primary NTFS partition and the rest of the space tied up in some non-Windows partition type. (Type 0xAF is ideal, if you can set arbitrary partition types, since that's the code for an HFS/HFS+ partition.) Dear friend, There is a 100 MB partition in windows 7 for bootloader only.. According to the thread below this partition is used to enable bitlocker feature in Default Windows Installation Drive.. http://social.technet.microsoft.com/Forums...31-36961ecae256 Link to comment https://www.insanelymac.com/forum/topic/181315-getting-rid-of-win7-100mb-boot-partition/#findComment-1234773 Share on other sites More sharing options...
srs5694 Posted August 25, 2009 Share Posted August 25, 2009 Dear friend, There is a 100 MB partition in windows 7 for bootloader only.. According to the thread below this partition is used to enable bitlocker feature in Default Windows Installation Drive.. http://social.technet.microsoft.com/Forums...31-36961ecae256 I don't believe your interpretation is correct. The Microsoft document referenced in the forum post to which you link is poorly written; the sentence that references the "hidden boot partition" is severely lacking in verbs. I've installed Windows 7 RC on two systems. The first, a test system, has an MBR type 0x27 (Windows Recovery Environment) partition and an MBR type 0x07 (NTFS; system boot) partition. There are no other partitions. It's the 0x27 partition to which I referred in my earlier post. Deleting it may cause boot problems (I don't know; I've never tried), but Windows doesn't require the partition in all circumstances.... My second Windows 7 RC installation was in a multi-boot environment. It's got a total of seven GPT partitions, most of which Windows can't see because the disk uses a hybrid MBR. In the hybrid MBR, Windows sees only its NTFS boot partition and a second NTFS data-exchange partition. (There's also the 0xEE pseudo-partition for GPT, of course.) There is no type 0x27 MBR partition, nor the equivalent in GPT form. All five of my GPT-only partitions are fully accounted for. I don't know much about the Windows BitLocker feature. It wouldn't surprise me if it used the 0x27 partition, though. It might also create yet another partition for its exclusive use under some circumstances, but if so, it's clearly not something that Windows always creates. Link to comment https://www.insanelymac.com/forum/topic/181315-getting-rid-of-win7-100mb-boot-partition/#findComment-1235197 Share on other sites More sharing options...
jasim Posted August 25, 2009 Share Posted August 25, 2009 I don't know much about the Windows BitLocker feature. It wouldn't surprise me if it used the 0x27 partition, though. It might also create yet another partition for its exclusive use under some circumstances, but if so, it's clearly not something that Windows always creates. Bitlocker is used to encrypt entire Drive. Consider We are encrypting our C:\ Drive. There will be no way to load the Operating system from encrypted partition.I think Windows 7 Uses a seperate partition for boot files hence Link to comment https://www.insanelymac.com/forum/topic/181315-getting-rid-of-win7-100mb-boot-partition/#findComment-1235490 Share on other sites More sharing options...
marklar2u Posted September 19, 2009 Share Posted September 19, 2009 The partition is only installed for business, enterprise, ultimate editions (ie. RC). This is related to recovery information and tool storage and bit locker encryption. It is not necessary for regular use of Win (unless you want encryption on). It is not a bootloader. There are numerous examples of people deleting it. it is named "System Reserved" with NTFS file system, and System, Active, Primary partition attribute with no drive letter in Disk Management. It is only created on an empty drive, or installing to an Unallocated space. If you give it a pre-formatted NTFS area to install on it won't happen. nice write up is here: http://www.mydigitallife.info/2009/08/20/h...ling-windows-7/ Link to comment https://www.insanelymac.com/forum/topic/181315-getting-rid-of-win7-100mb-boot-partition/#findComment-1273510 Share on other sites More sharing options...
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