Summary :
Does your disk appear as unknown or not initialized in Disk Management? This post talks about the two causes of this issue: unallocated space or no size. Keep reading to learn how to fix and recover data from a not initialized or unallocated disk.
Disk #0, Partition #2 6 A StartingOffset (in bytes) that is not 1,048,576 (1MB) is likely misaligned. Partitions created on Windows Vista/2008 and greater will automatically use a 1MB starting offset. See the following document(s) for more information: Disk Partition Alignment Best Practices for SQL Server. Disk Map 2.5 MAS macOS 7 mb. Disk Map - Visualize Hard Drive Usage & Free Space Disk Map makes it easy to visualize the files and folders that are cluttering up all your internal and external storage drives. It enables you to quickly locate, delete or compress large files and folders and reclaim tons of valuable space.
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Hard Disk Shows 'Unknown Not Initialized' in Windows
'When I plug in the drive, it says that it's successfully installed however it does not appear in 'my computer'. Also when I go into system tools it says that disk 1 is unknown, not initialized, unallocated. Can you please help me, I don't want to lose my data, it contains all my pictures.'sevenforum
Like the case above, the issue 'disk unknown not initialized' happens not only on removable hard drives but also on internal or external hard drives from major manufacturers like Western Digital, Samsung, etc in Windows 10/8/7.
When it occurs, your hard drive may show unallocated space in Disk Management, and the data on which will be inaccessible.
In addition, there is another situation: there is no disk space shown in Disk Management.
In general, a disk being unknown or uninitialized can be caused by various events including a virus attack, corrupted Master Boot Record, partition loss, bad sectors, and some computer file system corruption. If you are having trouble fixing your hard disk, please try the following solutions.
How to Solve Disk Unknown Not Initialized Windows 10/8/7
Case 1: Disk Unknown, Not initialized, Unallocated
First of all, open Disk Management and find the uninitialized disk. If its disk capacity is shown, that means your Windows operating system has recognized this disk, but its partition is lost or MBR is corrupted due to some reasons. In this case, you can use a professional software to fix the MBR and recover the partition.
Solution 1: Initialize Your Hard Drive
When it comes to hard disk not initialized, the first thing that you may do is to initialize this hard drive. Run Disk Management by right-clicking 'My computer' and then selecting 'Manage'. You can also press the keys 'Win + R' and input 'compmgmt.msc' to run the partition management tool.
Next, find the external hard drive connected to THIS computer. You will see this unknown disk appearing as 'unallocated'. If this external hard drive does not contain any important files, you can go ahead and initialize the disk without losing data. In Windows 10, initializing the disk to MBR or GPT should directly solve this problem.
Therefore, due to the effects of data loss, this solution is not always the best.
Solution 2: Rebuild MBR
MBR, short for Master Boot Record, is a special type of boot sector at the beginning of the hard drive. It could possibly be corrupted due to many reasons, such as malware infection, accidental power failure, and mistaken operation.
If the MBR gets corrupted, the operating system will no longer know where to access its data. This is when the issue 'disk 1 unknown not initialized external hard drive' could occur. Therefore, you need to rebuild MBR for your hard disk to solve this issue.
How to fix MBR in Windows 10?
You might have heard about a highly popular tool for partition and disk management - MiniTool Partition Wizard.
This partition and disk manager is designed to do partition and disk management in different operating systems, including Windows Vista/XP/7/8/8.1/10, Windows Server 2003/2008/2012/2016.
It has multiple different editions - Free, Pro, Pro Deluxe, Pro Ultimate, Server, Enterprise, and Technician Edition - each having different functions. Click here to learn about their differences.
To fix a corrupted Master Boot Record, using the Free Edition would suffice. First, download this free tool and install it on your computer.
Step 1: Run MiniTool Partition Wizard Free Edition.
Step 2: In the left pane of the main interface, select the unknown external hard drive and click 'Rebuild MBR' from 'Check Disk' menu. You can also right-click the target disk and select this function.
Step 3: You will be prompted back to the main interface. Here, click 'Apply' to execute the change.
If this method also cannot fix the issue - disk 1 unknown not initialized Western Digital, try another solution as follows.
Solution 3: Partition Recovery
Rebuilding MBR cannot always fully work on the 'disk unknown not initialized' issue. In Disk Management, if you find disk shows unallocated space, just try to do partition recovery.
MiniTool Partition Wizard also provides a feature called 'Partition Recovery'. It helps you recover the lost partition as well as its data. This will be useful as long as the new partition has not been created.
Brs pencil tool plugin. Note that this is a paid feature. To use it, you can purchase its Pro Ultimate Edition.
If you find the message 'hard drive not initialized in Disk Management', please try this solution in sevenforums using partition recovery to solve this issue. Here is a step-by-step guide below in Windows 10.
Step 1: Run MiniTool Partition Wizard. Then right-click on the target disk that has 'unallocated space', and select 'Partition Recovery'. Alternatively, click this function from the 'Check Disk' drop-down menu.
Step 2: Select the scanning range for the specified disk. There are three scanning range as follows:
- Full Disk scans the entire disk, which is very useful for finding the lost partition.
- Unallocated Space helps to only scan free space.
- Specified Range scans specified sectors. When clicking this option, you can change 'Starting LBA' and 'Ending LBA' according to your needs.
Choose one of the scanning range as you like, then click 'Next' to continue.
Step 3: Select a scanning method. Cookie 5 5 1 – protect your online privacy.
- Quick Scanrestores your partition if your lost/deleted partitions are continuous. When the program finds a lost/deleted partition, it will jump to the end of the partition to continue scanning other lost/deleted partitions.
- Full Scanwill scan each sector of the specified scanning range. If quick scan cannot find the lost partitions, try full scan.
Click 'Next' to continue doing partition recovery.
Step 4: Wait for this scan to complete finding the lost or deleted partitions. After finishing a scan, all lost partitions will be displayed in the following list. Please select the partitions you need.
Here you can double-click the searched partition to explore its content. After selecting your desired partitions, click 'Finish' to go back to the main interface.
Step 5: In the main interface, you can preview all lost partitions. Click 'Apply' to execute all changes.
Get MiniTool Partition Wizard now to try fixing the hard drive not initialized in Disk Management issue. If you find it useful, share it with other people to help them too.
After performing partition recovery, the issue of disk 1 unknown not initialized external hard drive should be fixed, and all data on this disk should be able to be accessed.
Solution 4: Recover Data from Unknown Disk
What should do if you have a large amount of important data saved on a hard drive with lost or deleted partitions, and 'Partition Recovery' can't help you?
Don't panic! The data on your external hard drive can be recovered by MiniTool. It offers a 'Data Recovery' feature that quickly recovers data when a hard drive is not initialized with simple clicks. Try it with MiniTool Partition Wizard Pro Ultimate.
Step 1: Choose the unknown not initialized disk and click the 'Data Recovery' feature from 'Check Disk'.
Step 2: This software will start scanning the selected disk; wait patiently until the scan completes.
Step 3: After the scan is complete, you can check the files that you need from the list it shows you. Then choose these items and click 'Save' to recover them to a safe location.
Related article:Recover Data from Disk Shows as Unknown without Damaging It Edgeview 2 26 – cutting edge image viewer.
For more information about case 1, you can watch the following video.
Case 2: Disk Unknown Not Initialized No size in Disk Management
If Disk Management is unable to show any information on neither this hard drive nor its disk capacity, the hard drive might have some disk problem or cartridge problem. Performing operations might be blocked by the 'external hard disk not initialized I/O' error.
Solution 1: Turn off PC and Remove Battery
Air radar 5 2 5 0. Perhaps disk unknown not initialized no size issue is caused by the PC motherboard issue. Just try to remove the battery to fix the issue:
- Turn off the computer.
- Disconnect the data and power cables from the problematic drive.
- Remove the CMOS battery for ten more seconds.
- Insert the CMOS battery.
- Turn on the computer.
- Shut down your computer.
- Connect data and power cable of the problematic drive.
- Start the computer.
If this method doesn't work, please continue reading.
Solution 2: Replace the Bad External Hard Drive
Usually, Disk Management is unable to grab the disk information or the capacity of a disk that is unknown or not initialized. This issue could still exist even when you connect the disk to another computer.
In this case, you should take this disk out and send it to professionals for an inspection. If there is a physical error, the only solution to the unknown not initialized no size issue is to throw it away and replace this bad external hard drive.
Install hp officejet pro 8600 mac. In addition, there are still some disk problems in Disk Management, such as hard disk is not detected and hard drive space is missing, the following two articles could be useful.
Conclusion
In summary, this issue 'disk unknown not initialized' can be solved quickly and easily with the assistance of MiniTool Partition Wizard. When addressing this problem, please try MiniTool products to rebuild MBR, recover partition and retrieve data. Hope you find this post useful.
Please leave a comment below or contact [email protected] if you have any suggestion or question. Thanks in advance!
Disk Unknown Not Initialized FAQ
Disk Map 2 5 X 4
Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk.
Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk.
Erasing a disk or volume permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep.
How to erase your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - Choose View > Show All Devices from the menu bar in Disk Utility. The sidebar now shows your disks (devices) and any containers and volumes within them. The disk your Mac started up from is at the top of the list. In this example, Apple SSD is the startup disk:
- Select the disk that you want to erase. Don't see your disk?
- Click Erase, then complete these items:
- Name: Type the name that you want the disk to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- Scheme: Choose GUID Partition Map.
- Click Erase to begin erasing your disk and every container and volume within it. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the disk you erased, reinstall macOS on the disk.
How to erase a volume on your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the volume your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - In the sidebar of Disk Utility, select the volume that you want to erase. The volume your Mac started up from is named Macintosh HD, unless you changed its name. Don't see your volume?
- Click Erase, then complete these items:
- Name: Type the name that you want the volume to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- If you see an Erase Volume Group button, the volume you selected is part of a volume group. In that case, you should erase the volume group. Otherwise, click Erase to erase just the selected volume. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the volume you erased, reinstall macOS on that volume.
Reasons to erase
You can erase at any time, including in circumstances such as these:
- You want to permanently erase all content from your Mac and restore it to factory settings. This is one of the final steps before selling, giving away, or trading in your Mac.
- You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
- You received a message that your disk isn't readable by this computer.
- You're trying to resolve a disk issue that Disk Utility can't repair.
- The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
- The macOS installer says that you may not install to this volume because it is part of an Apple RAID.
About APFS and Mac OS Extended
Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.
How to choose between APFS and Mac OS Extended
Traktor pro 3 vs traktor pro 2. Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS. If you want to change the format, answer these questions:
- Are you formatting the disk that came built into your Mac?
If the built-in disk came APFS-formatted, Disk Utility suggests APFS. Don't change it to Mac OS Extended. - Are you about to install macOS High Sierra or later for the first time on the disk?
If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files. - Are you preparing a Time Machine backup disk or bootable installer?
Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer. - Will you be using the disk with another Mac?
If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't work with APFS-formatted volumes.
How to identify the format currently in use
If you want to know which format is currently in use, use any of these methods:
Disk Map 2 5 Meters
- Select the volume in the Disk Utility sidebar, then check the information shown on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
- Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
- Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.
Reasons to erase
You can erase at any time, including in circumstances such as these:
- You want to permanently erase all content from your Mac and restore it to factory settings. This is one of the final steps before selling, giving away, or trading in your Mac.
- You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
- You received a message that your disk isn't readable by this computer.
- You're trying to resolve a disk issue that Disk Utility can't repair.
- The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
- The macOS installer says that you may not install to this volume because it is part of an Apple RAID.
About APFS and Mac OS Extended
Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.
How to choose between APFS and Mac OS Extended
Traktor pro 3 vs traktor pro 2. Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS. If you want to change the format, answer these questions:
- Are you formatting the disk that came built into your Mac?
If the built-in disk came APFS-formatted, Disk Utility suggests APFS. Don't change it to Mac OS Extended. - Are you about to install macOS High Sierra or later for the first time on the disk?
If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files. - Are you preparing a Time Machine backup disk or bootable installer?
Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer. - Will you be using the disk with another Mac?
If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't work with APFS-formatted volumes.
How to identify the format currently in use
If you want to know which format is currently in use, use any of these methods:
Disk Map 2 5 Meters
- Select the volume in the Disk Utility sidebar, then check the information shown on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
- Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
- Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.
If your disk or volume doesn't appear, or the erase fails
Disk Map 2 5 0
- Shut down your Mac, then unplug all nonessential devices from your Mac.
- If you're erasing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good. Then turn the drive off and back on.
- If your disk or volume still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your disk or Mac might need service. If you need help, please contact Apple Support.
Learn more
- If you can't start up from macOS Recovery, you can use a different startup disk instead.
- If Disk Utility shows a Security Options button in the Erase window, you can click that button to choose between a faster (but less secure) erase and a slower (but more secure) erase. Some older versions of Disk Utility offer the option to zero all data instead. These secure-erase options aren't offered or needed for solid-state drives (SSDs) and flash storage.