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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External HDD is causing my second drive to unallocate (disappear)

I am running Windows 7 x64 and have two drives, C and D respectively. D is within a RAID array running under Intel Rapid Storage Technology (IRST). The external HDD in question is a CN Memory ...
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1answer
26 views

Four NTFS partition + a ex4 on a MBR partition scheme

I'm about to install Linux OS in my computer. Using Windows' Disk Management, I shrunk a partition for Linux. After pressing OK on making a simple volume, Windows request to make the disk to dynamic, ...
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0answers
39 views

How to solve Windows Disk Management showing duplicate drives?

For some reason diskmgmt.msc is showing "repeated drives" (click image for full view): As can be seen, RECOVERY (D:) has two rows, one stating "File System" as NTFS and the other showing blank. ...
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3answers
42 views

Where did my system partition go after cloning from my previous hard drive?

I recently bought a 250GB Samsung 850 Pro SSD for my laptop, and used AOMEI Partition Assistant to clone my previous hard drive. One completed, I physically replaced swapped out the two drives, booted ...
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0answers
56 views

Editing partitions on USB drive disabled

I recently bought a 128GB USB drive, on which I'd like to make 4 partitions, but when I use Disk Management (Windows) and try to edit the main partition, the items in the list when right-clicked are ...
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1answer
156 views

Unable to detect Seagate Expansion hard disk

I am in big trouble. After searching over internet, I realised that my PCI Driver not installing because of Virus Probably. But I can see that system is detecting device And In Disk management, ...
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2answers
311 views

How to resize (enlarge) C: partition in Windows 8.1 | MiniTool, Paragon, and Disk Management all failed

ISSUE SUMMARY Can't resize Windows 8.1 system partition to utilize unallocated drive space. DESCRIPTION I am having a heck of a time with this one and have been chasing this for days. I have an HP ...
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53 views

Laptop hard drive not working on Windows

I'm having a very odd problem. I have a new Asus laptop (Model:A550J Board:X550JX) and I bought a caddy to change the DVD drive to a hard drive or SSD(older model, but roughly same casing), I tried ...
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1answer
33 views

Big discrepancy in used size between Drive Properties and All Files Properties

I have two different microSD cards which show a big discrepancy between the total size used when shown in Drive Properties and when shown in All Folders/Files Properties. Below is an example. ...
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1answer
222 views

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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1answer
198 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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12 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
63 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
153 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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0answers
17 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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1answer
97 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
739 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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1answer
110 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
396 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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387 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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0answers
195 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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0answers
34 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
524 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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1answer
139 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
76 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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1answer
957 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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1answer
116 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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100 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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1answer
206 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
42 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
120 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
1k 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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1answer
564 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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232 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
93 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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0answers
51 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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1answer
117 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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0answers
51 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
122 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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2answers
2k 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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1answer
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
341 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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1answer
255 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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1answer
112 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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1answer
39 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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2answers
6k 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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1answer
574 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
133 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
11k 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 ...