Windows 10: Where has my external drive partition and all of the data on it gone?

I have an external USB drive, internally within the drive housing it is actually two 1tb drives mounted in RAID1. It has always shown up in Windows explorer as a single 1tb drive. In disk manager it showed up as a lettered partition.Now it no longer shows up in Windows explorer although it can be heard as a USB device conecting and disconecting when plugged in and removed.In drive manager it shows only an 8GB unallocted partition.It does not show up to be ejectedCan't work out how to actually get the partition with the data on it to show up again.Edition Windows 10 ProVersion 22H2Installed on

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W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that

 

Help! Data partition not showing under my computer

This is happening on a windows 2000 server. Our second partition of the system, for data is not showing under my computer. Here are the properties of it in disk management:





Now under logical drives its listed as F and shows free space available.

Suggestions on how to fix this?

 

remove external hard drive partitions

Hi,

Thank you for posting your query on Microsoft community.

If you are logged in as an administrator, you can repartition your hard disk by using the Shrink feature in Disk Management. You can shrink an existing partition or volume to create unallocated disk space, from which you can create a new partition
or volume.

You may follow the step below and check if it helps:

• 
  Connect the external hard drive.
  
• 
  Press Windows Key and click on Disk Management.
  
• 
  Right-click the volume you want to shrink, and then click
  Shrink Volume.
  
• 
  Follow the instructions
  

You may also refer to the steps below and check if it helps:



Open cmd with admin rights

1. Run Diskpart application by typing Diskpart

2. In the “Diskpart” prompt, enter rescan command and press Enter key to re-scan all partitions, volumes and drives available.

3. Then type in list disk and press Enter key to show all hard disk drive available.

4. Select the disk that contains the partition you want to remove. Normally, with just 1 hard disk, it will be disk 0. So the command will be:

select disk 0

5. Finish by Enter key.

6. Type list partition and press Enter key to show all available and created partition in the disk selected.

7. Select the partition that wanted to be deleted by using the following command, followed by Enter key:

select partition x

where x is the number recovery partition to be removed and unlocked its space. Be careful with the number of this partition, as wrong number may get data wipes off.

Finally, type in delete partition override and press Enter key.



Disclaimer: Be sure to back up any data you want to keep before you begin.



Hope this helps to resolve your issue. If the problem persist please revert back to us we are glad to help you.