How to Increase Size of Hard Drive Partition Windows 10

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Hi Adrain,

Thank you for posting your query in Microsoft Community.

I understand your concern, and we in Community will try to help you in the best possible way we can.

I suggest you to follow the steps below and check if that helps.

Run Disk Management. Open Run Command (Windows button +R) a dialog box will open and type "diskmgmt.msc".
In the Disk Management screen, just right-click on the partition that you want to shrink, and select "Extend Volume" from the menu
Locate your system partition — that's probably the C: partition. Right-click on it and select "Shrink Volume." If you have multiple partitions on your hard drive, you could also choose to resize a different partition to free up space.

Hope the information helps. Please let us know if the issue persist and we will be happy to assist you further.

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I have a new computer with a 512GB SSD drive that shipped with the following 7 partitions:

The first and last partition show as unallocated and do not even show up under the Windows Disk Management utility. See below for my Disk Management information: It only shows 4 partitions, not 7, for some reason unknown. This is confusing to me.

My goal is to merge partitions so I only have one primary C: volume that is accessed by default. Is it possible to merge all of the unallocated volumes as well as the Data D: drive into the OS (C:) volume?

And what is the 499 MB Recovery partition used for? It shows it as being empty. I can not extend the C: volume using Disk Management because I tested and I shrunk Volume D: it ends up creating unallocated volumes that cant be extended on to the C: volume.

I am afraid to use the third party Easus Partition master as it seems like it may create even more unallocated and unuseable volumes.

PLEASE HELP if ANYBODY HAS ANY INFORMATION!

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This is no different than going through Administrative Tools. On my new Surface Book with 1TB SSD, the built-in 'Shrink Volume' option provides me with only 4322 MB of recoverable space. ****, this is my second MS computer (Surface Pro 3 was first) and that feature didn't work either! Can't Microsoft get something simple like this right?

What do I do now, just use a single partition? I normally like to keep my data separate from the system disk but you're making it frustratingly impossible!

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Any good third party partitioning utility can do the job.

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I reformatted D drive so I could extend C drive. C drive is not allowing the "Extend Volume" option. I want to put the D drive data into the new C drive. How do I resize my C drive?

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Kristoffer Abs

Hi,

You can use the Disk Management tool to resize the partition on your C drive. To do this, follow these steps:

Open Disk Management.
On the lower part of the Disk Management window, right-click on Data (D:) and select Shrink Volume... from the options.
In the field provided in the Shrink dialog box, enter the amount of space by which to shrink the disk and click Shrink.

Note: If you want to allocate 100 GB to drive C:, you need to put 100000 on the field provided.
This will create an Unallocated space as shown on the image below.
On the lower part of the Disk Management window, right-click on (C:) and select Extend Volume... from the options.
Click Next > on the Extend Volume Wizard window.
Click Next > to allocate the space you've created.
Click Finish.
Restart your computer and check the new space on your C: drive.