OEM PARTITION IS NOT VISIBLE ON GPT DISK

sir ,my oem partiton on windows 8 is hidden it is under gpt disk also indicating "*" mark on gpt ,what is the command in diskpart to unhide it as m using a command - SET ID=07 OVERRIDE ,but a error is shown up -THIS COMMAND DOESNOT WORK
ON DYNAMIC DISK OR MICROSOFT RESERVED PARTITIONS , plz help me regading this

Hi,
For you second question, as Windows live is involved here, I suggest we seek help in the following link:
https://support.live.com/default.aspx
There we could get a better understanding about Windows live family safety.
And here are some information regarding local parental control:
Set up Parental Controls
Set up Family Safety
Hope this could help
Best regards
Michael Shao
TechNet Community Support

Similar Messages

Macintosh HD partition is not visible in Windows

Hello
I've a MacBook Pro mid 2012.
A week ago I had a problem with OSX 10.9 and the Apple Premium Reseller fixed it with a clean instal of OSX. I've set everything back with my Time-machine backup. Because it was a software problem, my windows partition wasn't damaged. In Finder I can see the BootCamp-partition and of course my Macintosh HD-partition. But when boot with windows I can only see the Windows BootCamp-partition but not he Macintosh HD-partition. And that's my problem. I want to see the Macintosh HD-partition in windows. Before the clean install I could see the Macintosh HD-partition and now I want it back because I need it.
I've downloaded the newest BootCamp software (Boot Camp Support Software 5.1.5621) and installed it. Because the HFS+ driver is included in the BootCamp software you should think it solved the problem but it doesn't. I've read many communities and they told about only to reinstal the HFS+ driver which was exluded from the BootCamp software but this also didn't work.
I also tried to give the Macintosh HD-partition a 'disc-letter' because maybe that should be the reason why I can't see the partition but I can't give the partition a letter. I did it this way: Run => type: diskmgmt.msc. But it's impossible to give it a letter. (See additional photo at the bottom) I only can delete the partition when I right-click on it. (Is it normal that my disc have so much partitions which I don't know?)
Can someone solve my problem please?
Thank you very much for helping me out!
Joachim

The number of partitions should be four (the ESP/EFI information, OSX, Recovery HD and Bootcamp) on a single disk Mac machine.
From a working system with bootcamp, the partition id for entry 2 is AF (not AC) as is shown in your MBR, and the Windows installation only understands MBR (if you do not install using Windows 8.x/EFI on late 2013 Macs).
sudo fdisk /dev/disk0
Password:
Disk: /dev/disk0 geometry: 121643/255/63 [1954210120 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 -     409639] <Unknown ID>
2: AF 1023 254 63 - 1023 254 63 [    409640 - 1452530904] HFS+
3: AB 1023 254 63 - 1023 254 63 [1452940544 -    1269536] Darwin Boot
*4: 07 1023 254 63 - 1023 254 63 [1454211072 - 499998720] HPFS/QNX/AUX
There is a simple fix for this. You may have to re-install Bootcamp drivers again, to allow the HFS driver to pickup the MBR entry or a reboot may be needed. Please use the following commands and stop if you see any errors. (the i386 boot error message at the start can be ignored safely). This is done by using the fdisk utility in interactive mode with the '-e' command line option.
sudo fdisk -e /dev/disk0
p
setpid 2
AF
p
w
y
Here is the help page for the fdisk utility.
sudo fdisk -e /dev/disk0
Password:
fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory
Enter 'help' for information
fdisk: 1> ?
help Command help list
manual Show entire man page for fdisk
reinit Re-initialize loaded MBR (to defaults)
auto Auto-partition the disk with a partition style
setpid Set the identifier of a given table entry
disk Edit current drive stats
edit Edit given table entry
erase Erase current MBR
flag Flag given table entry as bootable
update Update machine code in loaded MBR
select Select extended partition table entry MBR
print Print loaded MBR partition table
write Write loaded MBR to disk
exit Exit edit of current MBR, without saving changes
quit Quit edit of current MBR, saving current changes
abort Abort program without saving current changes
fdisk: 1>

Hard drive partitions are not showing in Startup DIsk

My hard drive is partitioned into two volumes. HD1 & HD2 (Both 500 MB)
I had Snow Leopard installed on one (HD2) and Mavericks istalled on the other.(HD1)
Both volumes were visible in the Startup Disk option in System Preferences and I could restart from either.
I upgraded the Mavericks istallation to Yosemite - worked OK.
System Disk option showed both HD1 & HD2
Restarted the Mac from HD2 in Snow Leopard mode - no probs.
Then the problem started. I wanted to restart from HD1 in Yosemite mode.
Went in System Preferences to Startup Disk option - HD1 did not show in the window - only HD2 (Snow Leopard) & Network Startup.
Any ideas anyone? (Could be a bug?)

When I restarted using Com+Opt+P+R it went into Yosemite mode with both volumes showing in Startup disk.
Restarting with HD2 (Snow Leopard) gave me the same problem again.

Mac partition (hfs+) not visible in Windows after upgrade to Yosemite

Hi,
I'm using a MacBook Pro with two partitions, Windows 8.1 (Bootcamp) en Mac OS X. I upgraded Mac OS from 10.9 to 10.10 (Yosemite) recently.
After upgrading, the Mac partition in Windows is no longer visible. I need it to be visible, as I have files on that partition which I need to access in Windows.
I've checked the format of the Mac partition, which is HSF+. I have installed the latest Bootcamp driver (5.1.5621).
Any assistance would be appreciated.
Echnie


- <BuildInfo BuildNumber="5640" ProductName="Boot Camp">
- <MsiInfo>
<ProductManufacturer>Apple Inc.</ProductManufacturer>
<ProductVersion>5.1.5640</ProductVersion>
<ProductCode>{FA2B2C2A-EA41-495A-9308-60726125D562}</ProductCode>
- <Component Name="AppleOSSMgr.exe" GUID="*" SharedDLL="yes">
- <File Name="AppleOSSMgr.exe">
<KeyPath>yes</KeyPath>
<FileVersion>4.2.0.0</FileVersion>
</File>
And I have checked HFS+ drivers too, its there in Driver folder.

Flash drive not visible except in disk utility

I have a new MacBook Pro running Mavericks 10.9.2. The invisible flash drive is my main drive, not a USB drive. Not in list of Devices in Finder, no icon on desktop, no way to see it except by using Disk Utility. I see that many people are having problems with invisible flash drives but they all seem to be USB drives. Does anyone know if this is a Mavericks problem, or is it a MacBook Pro system problem? If Mavericks, maybe it will get fixed with next version.

I'm not certain what you mean by "invisible flash drive"?
If you want your drives to show up on yoru Desktop, set the Finder Preferences to do so:
Clinton

Macintosh HD not visible / deleted in Disk Utility, cannot re-install Lion

Hi
Any help for the following? Excuse the unclear terminology
MBA 2011, trying to do a clean install of either Lion or Yosemite. I erased the 'Macintosh HD' in disk utility in preparation for this, but something went awry during the process and it seems to have actually deleted the 'parent' drive (i.e. the SSD which sometimes has the manufacturers name). So if I go into disk utility via ctrl+r the hard drive does not appear at all - totally gone. I try to do an internet reinstall of Lion, there is nowhere to install it; and if I try to reinstall Yosemite from a bootable USB I have the same problem. I checked the condition of the hard drive prior to this, it was fine, and I have checked the hardware using the ctrl+d on boot and this also indicates that there are no problems with the drive - so I reasonably sure the hard drive isn't actually fried.
So...where has it gone? And how to I get it back so that disk utility can see it and I can actually reformat it etc etc??

Boot the MBA OPTION + COMMAND + R. The resulting display should be a revolving globe.
By following the directions, you will be connected to the Apple servers and should be able to install the original OSX that the MBA came with (Lion).
A solid Internet connection will be required.
Ciao.

Partition does not show as startup disk

I have partitioned my iMac drive and have snow leopard on HD and Yosemite on HD2. When I go to change to the Yosemite partition (HD2) it does not show in systems available to startup from, even though it used to be there.

Mine doesn't either, or rarely (did in the past) so I just use Windows Boot Camp control panel where both do show up.
If you alter or resize or create a 3rd partition, that also can happen.
Some people use rEFIt boot manager, I never have and so can't comment on its utility, but might want to check it out.

External hard drive not visible in disk utility or finder

Hi all,
I have had a good look through previous discussions and I can't seem to find an issue relevant to mine.
My external hard drive has 2 partitions (1 time machine back up, 1 general hard drive). The issue is that the HD is running when it is plugged in however it is not visible in either disk utility or finder.
I am running OS X 10.10 (Yosemite) on a 2010 MacBook Pro. I also have parallels desktop running windows 7. When I boot windows and plug in the HD I usually get the option to mount the HD to either OS X or Windows. With this issue the option window appears for a split second (not enough time to select either) and then disappears. It seems that the HD may be ejecting itself as soon as it is registered by the computer. I have tried using a different power cable for the HD and also a different usb cable, this doesn't help.
The external HD is a Samsung D3 Station, which i have had for 6 months now and never had an issue with.
Any help is appreciated
Thanks,
Bruce

An update for anyone who can help me:
I have tried the external hard drive in other computers (mac and windows), each time I get the same problem above.
I have removed the HD from the enclosure and purchased a docking station for it (3.5" SATA). When I plug it in to the laptop it disconnects itself straight away before it is visible. With the windows computers it installs the drivers and says that the device is ready to use, then disconnects before it shows up.
As the HD is not visible there is no option to re-format or anything.
This is very frustrating as I was using the HD with no issues and it randomly disconnected and I have not been able to access since.
Thanks in advance for any help.
Bruce

IMac G5 17" is DOA... drive not visible in Disk Utility

About a week after my computer went out of warranty (OS 10.3.9), I have been experiencing random complete system meltdowns every 5 or 6 months. It begins while using the search feature, the beachball spins for 8-10 minutes then pulls search results. Following that, the system stalls on every task, and restarts with the blinking "?" folder. In the past, a re-install of the OS was a frustrating, but simple solution.
Last Friday, this happened for the fourth and final time. Upon attempting to re-install the OS, the install froze, locking up the computer. When I restarted to try to re-install the OS, the drive was not visible in the Disk Utility. It isn't visible in any Mac utility that I have tried, nor Disk Warrior.
I just replaced the SeaGate 7200 hard drive with a refurbed one, and the problem continutes--the drive is not visible to the install.
Is this 2-year old Mac now a paperweight? With the market resale value of this machine only about $500-600, I can't stomach spending a third of that to have something repaired, for all of this to potentially happen again.
Is it terminal? Has anyone else experienced this?
I'm really bummed out. As a Mac user for the last 15 years, I can't bear the thought of spending another 2 grand on a computer that will let me down again. I'm tired of the Pee Cee world hazing me as it is, and episodes like this don't make it any easier. Someone please tell me there is a solution...
doug

It DID break down a week after I received a call from Apple asking me to purchase an extended warranty. I wouldn't make that up.
It's on 10.3.9 because, in typical Apple fashion, 10.4 came out a WEEK after I bought my computer. I never bought the upgrade software from Apple just out of anger that a new computer was shipped with obsolete OS installed when a new version was hitting the shelves so soon afterwards. I work on 10.4.10 here at the office, and never missed the "features" at home. For $179, it wasn't something that ever screamed to be a necessity for a home computer.
The drive wasn't necessarily refurbed, but it was "recycled" and bought cheap to find out if it could be a simple solution. For $35, it was an easy attempt to figure out what was wrong with the computer. It didn't solve the problem, and was much cheaper than throwing money at it without knowing what was wrong.
At this point, I'm trying to save this box from becoming landfill. I bought a Dell PC laptop this past weekend for a third of what I paid for this iMac, and when it breaks down or obsoletes itself in 2 years, it won't be so difficult to swallow getting rid of it for something new.
I'm going to open this up again this afternoon to check the test LEDs and see if I can spot anything.
Don't get me wrong, I love Macs, and always will, but I can't any longer justify spending $2000 on a home computer. They are disposable appliances, and if they aren't going to come from the factory with warranties long enough to last through their lifetime, then it's difficult to spend that much money on a computer than only needs MORE money spent to maintain functionality.
I'll post back with my findings later today after I crack this open. Thanks for the assistance so far.
doug

I deleted a partition on my macbook pro and now that space is not visible in Disk Utility

I had a dual boot setup on my 1TB drive on my macbook with a linux partition. I decided to delete the linux partition and free up some space for my OSX partition. I went into recovery mode and first erased the linux swap partition then the linux partition. Then I went into the partition tab on Disk Utility and clicked on the "-" button for each swap partition and linux partition. Now when I go into Disk Utility now though the 500 GB that should have been freed up is not visible and I cant resize the OSX partition to include the extra space.

Let it finish, then you can safely delete it.

"Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, windows can only be installed to GPT disks." Error

Hey Im getting the following error when trying to install windows from a USB.
"Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, windows can only be installed to GPT disks."
I installed the windows 8 (64bit) iso using boot camp to a usb. I was able to do this after changing the info.plist to allow me to place the iso on the usb. After I make the partition and start the install, I get the above error. I formatted the partition in the installation but I keep getting this error. I've repreated the entire process but i keep getting this errror and the disk utility says my partition is a Windows NT File System (NTFS) so im not sure what's going on. If you can help me that would be greatly appreciated

I am having the same problem. Windows is trying to install. It identifies the various partitions but says that I cannot install Windows on the Boot Camp partition or any other. I select Drive options (advanced) and Format the Boot Camp drive, but it makes no difference.
This is the Windows error:
Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks.
Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer BIOS menu.
I am not sure what Csound1 is suggesting with that post above. There are some involved suggestions over here <https://discussions.apple.com/message/23548999#23548999> about using Disk Utility to delete the Boot Camp partition and create new ones - is that the idea?

Windows cannot be installed to this disk 0. The selected disk has an MBR partition table. On EFI system, Windows can only be installed on GPT disks

Hi All,
I have been trying real hard to install Windows 8 on my Macbook Pro early 2011 model. I followed the instruction given by Bootcamp word to word, all things went very smoothly untill I was asked Windows Setup Instaled to selct the Hard drive. Here's the error:
"Windows cannot be installed to this disk 0. The selected disk has an MBR partition table. On EFI system, Windows can only be installed on GPT disks...."
Let me know guys what should I do?
Thanks,
Attiqe

You have started the Windows 8 installer in EFI mode, and you don't have to start in EFI mode on a Mac because your Mac emulates a BIOS and a MBR partition table in order to install Windows in non-EFI mode.
To start the Windows installer, hold the Option (Alt) key while your computer is starting and have a look at all the boot options you have. You should see two with a DVD above and they must be named "Windows" and "EFI Boot". Choose the option with "Windows" and follow the steps to install Windows. Note that you have to format the "BOOTCAMP" partition from the installer to be able to install Windows.
If you are trying to install Windows from a USB drive, note that your computer isn't compatible to do it

Hard drive partitions not visible

I have a MacbookPro, with 3 partitions on the hard drive:
* boot disk+OS X (33GB, os x journalled)
* data partition (107GB, os x extended, case sensitive)
* spare (5.5gb, "Unix File System" which I believe is OSX's word for ext3)
Quite often, when I boot up, only the first partition is visible. Disk Utility shows the drive as having one 30GB partition, and the rest as unused space. This is particularly troubling for me, as my home directory is on the second partition, and when it is not found, I cannot log in.
What could possibly be causing the partitions not to be seen?
When this happens, all I can do is continually reboot, hard and soft, until magically one time it works. Sometimes, it also fixes itself after 5-10 minutes.
Any thoughts or ideas?
Thanks,
dave

bump
No ideas anyone?

Hard drives not visible in Disk Utility

I decided to add two additional 1.5 TB drives to my (early 2008) Mac Pro, in addition to the two 1.0 TB drives already there. I have a Mac RAID card, but the drives were not configured into an array because I was having battery and setting problems with the RAID card as described in previous posts.
I perhaps got the the not so bright idea to reconfigure my system from scratch, so I put the two 1.5 TB drives in, created partitions via Disk Utility, and then took all the drives out. I then put one of the new 1.5 TB drives in only, and re-installed OS X. So far, so good. Then, I put all 4 drives in, including the previous 1.0 TB drive with OS X on it.
Interestingly, the system then booted to the old 1.0 TB drive with OS X, and then it 'hung' on something with the spinning icon. I shut it down, and then put the new 1.5 TB with OS X, but it would not start. I yanked out the RAID card, figuring it was not helping. I managed to put the Boot DVD in, and the system does boot to DVD. However, it cannot visualize any drive at all, only the two DVDs in Disk Utility.
I tried several things. One is hardware scan by holding the 'D' key on startup -> no errors.
I then tried resetting the PRAM holding the command-option-P-R keys, same issue - boots to DVD, but no drives.
I then tried resetting what I think is the SMC, which is a button on the motherboard down near where the memory slots, and there a green light comes on next to the STBY area.
I'm out of the Apple care warranty, and I guess I'll have to pay for support going into the Mac Store, but I am hopeful someone has an idea.
I wondered if the cable from the SATA connector to the motherboard was loose, but it appears intact. However, I'm not sure how to get the plastic cage off.

Good idea, but the RAID card is out, and even the original drives are not visible. There is some type of BIOS or some related error.

Partition Tab not showing in Disk Utility

Hello again everyone,
I'm attempting to partition my LaCie 2TB (RAID1) Disk in Disk Utility, however the partition tab is not showing up..
There are 4 items visible in the Disk Utility window:
1) the Internal OS Disk
2) the LaCie 2TB (RAID1) Disk
3) & 4) the two slices/partitions of the LaCie mirrored RAID
I select the 2TB LaCie RAID1 Disk, however it only shows the "First Aid" & "RAID" tabs.
The "Partition" (as well as "Erase" & "Restore") tabs are not available or shown.
When I select the Internal OS Disk all the Tabs are shown, and when the 2 slices or partitions of the RAID1 are selected it shows the "First Aid, Erase, Partition, Restore" tabs..
Am I missing a step here?? I know I'm not supposed to select the slices/partitions of the RAID, but instead to select the LaCie 2TB Disk itself, however this is the only option which does not show any "Partition" Tab..
Any assistance is GREATLY APPRECIATED.. Thank you!

Have you tried this:
Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to two. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
I'm sort of confused as to why you would partition a 3 GB drive into just a single 1 TB partition, but that's what I understood you to say. Is this 3 TB drive installed in an enclosure that actually supports a drive of that size? Older enclosures may not and should not be used.

OEM PARTITION IS NOT VISIBLE ON GPT DISK

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