The Windows disk partitioning and management utility; can be used to assign drive letters and create, delete, format, and resize partitions.

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Normal amount of Recovery Partitions and how to know their content

I just bought a new pc and noticed that the available capacity of my C: drive was a lot less than the advertised amount. Taking in account that Windows counts 1 GB = 1024^3 bytes, my pc should report ...
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81 views

Why I can't format 500 GB drive as FAT32 under Windows 7? [duplicate]

What can cause Windows 7 to prevent me from formatting 500 GB (actually 465 GB) external USB disk as FAT32? No matter, what I did (Windows Explorer, Disk Management), the only options I was presented ...
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11 views

Merging non-adjacent partitions in Windows 8.1 [duplicate]

I don't know why, but somehow I ended up with ~8gb partition on my tablet pc's main drive. This is a problem because the drive is only 64gbs, so losing 8gb is a big deal. The problem is that the ...
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2answers
37 views

Disk Management label disk (not partition)?

I know how to label a partition. I am not asking for that. Disk Management displays all disks in "Disk #" and its capacity. I have to admit I once had formatted a wrong disk with the same capacity ...
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1answer
68 views

How to display byte sizes with binary prefixes?

For as long as I can remember, Microsoft DOS and Windows have been displaying byte sizes with decimal prefixes, instead of binary prefixes. This has plagued at least two generations of computer users ...
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14 views

One of the partitions is not showing on my computer

I have 3 partitions on my PC. But automatically when I restarted my PC, then F drive is not showing. F drive is of 201GB and among 204 perhaps 50GB is used. I tried to restore it from Windows Disk ...
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58 views

Why does the Windows Disk Management tool display my partitions as logical?

Firstly, I own an Acer laptop originally having Windows 7, now upgraded to 8.1, & initially had 3 primary partitions (that is PQSERVICE, SYSTEM RESERVED & Acer (C:)). I decided to migrate my ...
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1answer
79 views

Mounting EFI partition on Windows [duplicate]

I'm trying to mount the EFI Partition from Disk Management but all the options for the EFI partition are greyed out, so I can't do anything.. here's a screenshot from the problem :
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44 views

Need to Convert Dynamic Disk to Basic Without Formatting

My hard drives got converted to Dynamic in order to increase the number of partitions. I tried Partition Wizard Server Version, but its not working. I need to convert the partitions to basic to ...
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2answers
177 views

How to manage space effectively on a small SSD

How do you manage disk space on a small SSD? I bought a new PC that came with a 128GB SSD (local disk) and 1TB internal drive. The OS takes up most of the space on the SSD. From the moment I turned ...
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85 views

Drive NAME does not show up when viewing in Explorer but does in Disk Management

Issue: When I have a drive attached to my PC (non-USB) it shows up fine in disk management and shows up fine when checking under "Computer" (where you see all your drives, and I can also use the ...
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118 views

windows 7 creating extended logical partition in disk manager causes computer not to boot (black screen)

I searched around and could not find a post or solution for the same situation I am having, so I am going to describe what happened/happens below: I have Windows 7 Home Premium installed on my Medion ...
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27 views

Win 8.1 Pro: Disk Mirroring questions

So its my first time setting up any kind of redundancy for my media and I have a few questions. My setup is as follows: Shuttle SH87R6 Intel i7-4790k 8GB RAM Win 8.1 OS on Samsung 850 Pro 512GB 2x ...
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1answer
216 views

Disk Management shows incorrect volume size

Earlier I shrunk drive C using Disk Management but ran into "The parameter is incorrect" error. I now have the following situation: According to the top pane in the following screenshot, Disk 0 ...
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94 views

Flash drive not recognized

I was copying some files to my flash drive and removed it from my laptop.  When I plugged it into my PC, it didn't recognize it and it doesn't show up in disk management, and I can't find it in device ...
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3answers
68 views

Why do I have four free partitions besides by C drive?

I was about to partition my hard drive today when I found that in Disk Management I have four partitions other than my C: drive that have 100% free space. What are those partitions? Can I get rid of ...
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466 views

Windows Server 2012 Missing Disk Space

I'm completly lost here, have no clue where the other 20gbs have gone. Could anyone assist me?
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79 views

How do I merge two unallocated, non-sequential partitions on the same logical disk?

I'm wondering if I could merge two unallocated spaces as shown in the picture below: I would like to combine the two unallocated spaces into a single space for further partitioning.
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64 views

Re-merging two disk that used to mirror each other

I have had two hard disks that mirrored each other (RAID 1, software based). After I recently plugged them out of the mother board and plugged them back in, this mirrored volume was unavailable. I ...
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41 views

Drive error in RAID 10 (1+0), How to proceed?

I have a 4 drive (3TB WD Red) RAID 10 array. I'm running Windows 7 Professional, and -- at least as far as I understand -- my BIOS is controlling the RAID array. Windows Disk Management tells me the ...
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1answer
139 views

Windows not recognizing CD/DVD drive

I have an Acer Aspire laptop running Windows 7. It has (suddenly) stopped recognizing any CD/DVD that I put in the drive. When I insert a disk, it seems to be processing it for a couple of seconds ...
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1answer
38 views

Why my new partition disappears?

I use windows 7 Pro. I shrink from Drive C for creating a new partition using Disk Management. After entering the amount of space and pressing Shrink button, the amount decreases from Partition C but ...
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1answer
105 views

partition managing not allowing to expand

I wanted to dual boot Linux + win7. I got to the disk management program and discovered that I can not extend the win7 partition. (superuser also wont allow me to post images so I cant stick an image ...
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1answer
798 views

External storage doesn't show up in pc or disk manager

When I plug in my external HDD the LED on the disk lights up but i can't see it in my PC/DISKPART/DISK MANAGEMENT. I tried all the ports on my computer but it doesn't show up.Help please. HDD:- ...
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159 views

How can I correct a disk drive showing the wrong capacity

I've been given a Buffalo Ministation (HD-PC320U2/BK-EU), it's a 320GB USB2 drive, but whenever I plug it into any machine (I've tried a Mac, Linux and even Windows as a last resort) it reports that ...
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210 views

Windows 8.1 hibernation partition is 100+ gigs, physical memory is 32 gigs?

I have a 480 gig SSD as my OS drive. I have a usable partition of 345 gigs, which seems pretty small. According to Disk Manager I have a 101.36 gig partition for hibernation. I did some googling and ...
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3answers
83 views

Where is the MMC CARD that I see in the my computer

There is no MMC CARD connected to my computer, But when I open MyComputer I see a MMC-Card drive there that has 487 MB of 487 MB free space! Disk Management output : And Diskpart output : ...
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44 views

Windows 7 - Lesser options in disk management

On my laptop, I can see these options in disk management: https://www.dropbox.com/s/h9vyreiscw427my/DM1.png?dl=0 I need to make new mirrored volume for RAID 1 on my desktop, but I don't see them ...
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90 views

Importance of TLER in Windows 8 RAID0 application?

I am looking to buy two drives to RAID. (Edit: I understand that RAID0 doesn't fit the Redundant part of the acronym, but it is listed as a standard RAID level on Wikipedia.) I'd like to create a ...
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46 views

'lost' windows partition. how to get it going again?

I was shrinking my partitions using Disk Management and it all went fine. Then I started PartitionMagic and it was saying me something like you have errors in the partitions (something like partition ...
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1answer
106 views

Windows 7 Extend C Volume to Unallocated Space

A while back I installed Ubuntu and then later uninstalled it by I think deleting the partitions and recovering the windows 7 boot loader. I am not that experienced with partitioning yet. As you can ...
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1k views

Does “Offline” in Disk Management actually turn off (spin down) the disk?

There is "Offline" menu in Disk Management. If I click that, the disk becomes offline and not accessible. My question is that, does "offline" actually turn off (spin down) the disk for good (until the ...
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2k views

Does windows 7 disk manager mirror disk or partitions?

My servers Raid 1 disappeared when I did a bios update, And now in order to get it back I have to format my 2 * 3tb hard drives. Which isnt really a solution for me. So I have desiced to try and make ...
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2answers
211 views

Why are two different hard drives listed as one disk in Disk Management?

I feel like there's something going wrong with my hard drives on my computer... Yesterday two I use for storage (M: and H:) stopped working altogether. Today they came back and seem fine, but now I ...
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190 views

Assign USB drive the letter “A:” in windows XP mode (on windows 7)

Is it possible to assign the drive letter "A:" to a USB pendrive? I've tried it using the SUBST-command, mapping a network drive and via the diskmanagement console. But none of them seem to accept A: ...
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99 views

Out of Band Disk Partitioning and Tables [closed]

Our current methods of disk partitioning involve storing the partition layout on the disk itself, right along with the data. It's easy to screw up the data in a disk : just wipe out the partition ...
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33 views

Disk actions are not available for some drive in Disk Management

I have plugged old E-IDE PATA drive into my motherboard and it detected it, unfortunately, Windows only see this drive but can't do anything with it. Why?
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5k views

Extending a partition to unallocated space on the LEFT?

I want to extend the partition C (without losing it's content) by adding the extra free(Unallocated) space before it; but as you can see the extend is disabled;(I know that extend will be enabled when ...
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461 views

Unable to assign a drive letter to my Ubuntu partition from Windows

I recently reinstalled Windows 7 and backed up my files on my Ubuntu partition. Now I would like to retrieve them, but the Ubuntu partition isn't visible from my file browser. My research revealed ...
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4answers
4k views

External Hard Drive does not appear in Computer

I am using a WD My Passport external Hard drive. The drive does not appear in Computer, Device manager nor in Disk Management. How may I bring it "back to life" or at least restore the data that was ...
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1answer
126 views

Helping with partitioning a hard drive

I'm starting to use Windows 8. I have only one partition on my hard drive. And I want to create two individual partitions. But I don't have much experience in partitioning disk. When opening Windows 8 ...
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5answers
9k views

How to add more disk space to the local drive?

I am using Windows 8 Single Language 64 bit. I have > 350 GB Unallocated space in my hard disk. I want to add this > 350 GB unallocated space to C: drive where Windows is installed. I have checked ...
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383 views

cannot boot after shrinking volume

I have one 1TB HDD on my desktop. It has 3 primary partitions: C: (Boot, Contains Windows) D: (Backup Disk) E: (Another Backup Disk) Now, I wanted to have another partition for my Linux, so I ...
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1answer
915 views

Recover Deleted Drive

I had two drives: A C drive that contained the OS files. A D drive that contained my personal files. The D drive was made out by shrinking C drive and creating a new volume out of the unallocated ...
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1answer
2k views

Why can't I extend this partition into the unallocated space?

Check out the screenshot below, I want to extend my C partition (where Windows is installed) into the unallocated free space shown. This space was cleared up by shrinking the D partition. I can extend ...
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1answer
2k views

Disk Management and Windows Explorer show different allocted sizes

I shrinked 50GB from my main bootcamp NTFS partition. After a reboot my windows explorer now shows that drive C's total size is 90GB, but the Disk Management tool in windows (and EaseUS Partition ...
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2k views

External HDD not showing in explorer, only have “Delete Volume” in Disk Management

my external hard disk is not showing up in Explorer. In Disk Management, all of the options are grayed out except for "Delete Volume". I tried right-clicking on the Disk and selecting "Convert to ...
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481 views

Can't access disk manager

I'm pretty sure it was a policy imposed from the network domain but the user has administrator access on their box, how can this be? The administrator account on the machine is disabled (again, I ...
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334 views

alerting you when a hdd is missing with software windows raid

So I open up Computer Management on my file serving computer in what has to be the first time in months or maybe even over a year and see that the mirror I had created of my 1TB HDD has "failed ...
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2answers
158 views

Is a disk defragmentation needed in this case?

I'm running Debian 6.0.5 (squeeze) with ext3 as the filesystem. I'v read that ext3 does not require defrag, but I was recently trying out some torrent clients and they all came with the allocate disk ...