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What is "Set partition to active" under Disk Management?


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Posted

Does anyone know whay "Set partition to active" is about under Disk Management?

I accidently select this option for [D: drive], hopefully, it does not cause

any damage so far. I would like to know what this option is about and how to

disable this option.

Does anyone have any suggestions?

Thanks in advance for any suggestions

Eric

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Guest Pegasus \(MVP\)
Posted

Re: What is "Set partition to active" under Disk Management?

 

 

"Eric" <Eric@discussions.microsoft.com> wrote in message

news:A17C20C0-1274-44E3-99EE-6E06D7C2F7AE@microsoft.com...

> Does anyone know whay "Set partition to active" is about under Disk

> Management?

> I accidently select this option for [D: drive], hopefully, it does not

> cause

> any damage so far. I would like to know what this option is about and how

> to

> disable this option.

> Does anyone have any suggestions?

> Thanks in advance for any suggestions

> Eric

 

When you turn on your PC, the BIOS looks for the

partition marked "active". It will then execute the code

stored in the Master Boot Record (MBR) of this active

partition. If you mark the partition containing drive D:

as active then the machine will probably not boot up.

Guest Lil' Dave
Posted

Re: What is "Set partition to active" under Disk Management?

 

"Eric" <Eric@discussions.microsoft.com> wrote in message

news:A17C20C0-1274-44E3-99EE-6E06D7C2F7AE@microsoft.com...

> Does anyone know whay "Set partition to active" is about under Disk

> Management?

> I accidently select this option for [D: drive], hopefully, it does not

> cause

> any damage so far. I would like to know what this option is about and how

> to

> disable this option.

> Does anyone have any suggestions?

> Thanks in advance for any suggestions

> Eric

 

I would deny any use by any user to computer management, thus, disk

management, period.

 

The active bit, when set for a partition (only one can be set per physical

hard drive at any given time and must be a primary partition), directs the

system to look at that hard drive for boot files in a specific location

specified by that partition. If those files do not exist or the pointer for

boot files does not exist, the PC cannot continue.

 

As with all versions of windows, the actual boot files are located on the C:

partition. Not to be confused with the XP definition of windows boot

partition. XP calls the boot partition where the boot files and boot

partition are located, the system partition. If you're confused, so was I

when I first saw this. I'm still confused about the descriptor "boot" and

"system". Seems intentional to me.

Dave

Posted

Re: What is "Set partition to active" under Disk Management?

 

Thank everyone for suggestions

Does anyone know how to disable the active partition for [D: drive] without

formating it? At this moment, I still can turn on / off my computer with no

problem. It seems Disk Management doesn't offer any option to disable this

active one.

 

Thank you very much for any suggestions

Eric

 

"Lil' Dave" wrote:

> "Eric" <Eric@discussions.microsoft.com> wrote in message

> news:A17C20C0-1274-44E3-99EE-6E06D7C2F7AE@microsoft.com...

> > Does anyone know whay "Set partition to active" is about under Disk

> > Management?

> > I accidently select this option for [D: drive], hopefully, it does not

> > cause

> > any damage so far. I would like to know what this option is about and how

> > to

> > disable this option.

> > Does anyone have any suggestions?

> > Thanks in advance for any suggestions

> > Eric

>

> I would deny any use by any user to computer management, thus, disk

> management, period.

>

> The active bit, when set for a partition (only one can be set per physical

> hard drive at any given time and must be a primary partition), directs the

> system to look at that hard drive for boot files in a specific location

> specified by that partition. If those files do not exist or the pointer for

> boot files does not exist, the PC cannot continue.

>

> As with all versions of windows, the actual boot files are located on the C:

> partition. Not to be confused with the XP definition of windows boot

> partition. XP calls the boot partition where the boot files and boot

> partition are located, the system partition. If you're confused, so was I

> when I first saw this. I'm still confused about the descriptor "boot" and

> "system". Seems intentional to me.

> Dave

>

>

>

Guest Pegasus \(MVP\)
Posted

Re: What is "Set partition to active" under Disk Management?

 

Mark your first partition (drive C:) active.

 

 

"Eric" <Eric@discussions.microsoft.com> wrote in message

news:5BCC00AF-F0A9-4E30-ACD8-AA447942B4C9@microsoft.com...

> Thank everyone for suggestions

> Does anyone know how to disable the active partition for [D: drive]

> without

> formating it? At this moment, I still can turn on / off my computer with

> no

> problem. It seems Disk Management doesn't offer any option to disable this

> active one.

>

> Thank you very much for any suggestions

> Eric

>

> "Lil' Dave" wrote:

>

>> "Eric" <Eric@discussions.microsoft.com> wrote in message

>> news:A17C20C0-1274-44E3-99EE-6E06D7C2F7AE@microsoft.com...

>> > Does anyone know whay "Set partition to active" is about under Disk

>> > Management?

>> > I accidently select this option for [D: drive], hopefully, it does not

>> > cause

>> > any damage so far. I would like to know what this option is about and

>> > how

>> > to

>> > disable this option.

>> > Does anyone have any suggestions?

>> > Thanks in advance for any suggestions

>> > Eric

>>

>> I would deny any use by any user to computer management, thus, disk

>> management, period.

>>

>> The active bit, when set for a partition (only one can be set per

>> physical

>> hard drive at any given time and must be a primary partition), directs

>> the

>> system to look at that hard drive for boot files in a specific location

>> specified by that partition. If those files do not exist or the pointer

>> for

>> boot files does not exist, the PC cannot continue.

>>

>> As with all versions of windows, the actual boot files are located on the

>> C:

>> partition. Not to be confused with the XP definition of windows boot

>> partition. XP calls the boot partition where the boot files and boot

>> partition are located, the system partition. If you're confused, so was

>> I

>> when I first saw this. I'm still confused about the descriptor "boot"

>> and

>> "system". Seems intentional to me.

>> Dave

>>

>>

>>

Posted

Re: What is "Set partition to active" under Disk Management?

 

An active primary partition only matters if you're trying to boot from

the disk that contains that partition. In other words, if you set the

BIOS to boot from the second disk drive, then the boot files for the

operating system has to be in that active primary partition. Since the

BIOS is set to boot from the first disk drive, the active primary

partition on the second disk drive is of no consequence.

 

On Tue, 21 Aug 2007 00:10:00 -0700, Eric

<Eric@discussions.microsoft.com> wrote:

>Does anyone know whay "Set partition to active" is about under Disk Management?

>I accidently select this option for [D: drive], hopefully, it does not cause

>any damage so far. I would like to know what this option is about and how to

>disable this option.

>Does anyone have any suggestions?

>Thanks in advance for any suggestions

>Eric


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