Move Unallocated Space to the C drive｜Extend Your C Drive Space 3 Methods

C drive is easy to get full and shows a red bar in Windows File Explorer. What's worse, receive a 'Low Disk Space' warning. This video provides you with many ways to extend C drive in windows 11/10/8/7 with unallocated space.

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✅ 【Move Unallocated Space to the C drive】
⏰ 0:00 Start
⏰ 0:43 Method 1: Disk Management
⏰ 1:44 Method 2: Move Partition
⏰ 2:54 Method 3: Merge Partitions

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✅ 【Detail】
⏰ 0:43 Method 1: Disk Management
Disk Management is a built-in tool in Windows, users can use it to add unallocated space to the C drive.
1. First, right-click Windows to open Disk Management.
2. Once Disk Management has loaded, right-click on the C drive, and select the "Extend Volume" to extend the C drive with the unallocated space.

However, some users find the "Extend Volume" greyed out. That's because the unallocated space is not adjacent to the C drive, or the unallocated space is not on the right side. The Disk Management can only extend a partition with an adjacent unallocated space on its right side. Fortunately, there are two other ways for you to move unallocated space to C drive.

⏰ 1:44 Method 2: Move Partition
If the above method doesn’t work for you, you can turn to AOMEI Partition Assistant Professional. This specialist partition manager provides the "Move Partition" feature, which can help move unallocated space next to the C drive and then combine them into one. You can download the standard free version of AOMEI Partition Assistant in the description area and upgrade to Pro to enjoy this advanced feature.
1. Launch the software. You can see the unallocated space is not on the right side of the C drive. Right-click on the C drive and select ‘Move Partition’ from the menu.
2. In the window, you should drag the C drive toward the left side and click OK.
3. Now the unallocated space is on the right side of the C drive. Next, you can right-click the C drive and select ‘Resize Partition’
4. In the window, you should drag the C drive to increase the drive size with the unallocated space. Next, click OK.
5. Finally, click on Apply in the top left corner of the window to submit the pending operations.

⏰ 2:54 Method 3: Merge Partitions
This method uses a simpler process to move the unallocated space to the C drive.
1. At the homepage of AOMEI Partition Assistant, right-click on the unallocated drive and select Merge Partitions from the menu.
2. In the popup window you should select the partitions you want to merge and click OK. This will allow you to merge the partitions directly with the C drive without having to worry about where the unallocated space is located.
3. Click on Apply to complete the operation.

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[kripler]

Been trying to work this out for almost 3 hours. But it only took less than 5 minutes after watching your video to finally solve it. Thank you very much man!

[SamsungSMAU]

is there a way to merge windows C: and D: New Volume? Or basically is there way to merge Disk 1 and Disk 0?

[AllanSanches]

If I have a bigger partition with data, and I merge it with a smaller unallocated partition, can I lose data in my bigger partition?

[megabaneen]

Thanks i love AOMEI PRODUCTS. exceellent tutorial

[bishalscreation]

i am in a big problem . i cannot click merge partition :( its greyed same as in disk management extend is greyed horrible windows. may be its coz my drives are encrypted i wonder why

[joelwarren]

I installed windows 10 on a partition 50gb and I want to extend.

My issue is that the order is showing c drive 50gb, 50MB system, d drive 100gb, unallocated space 800gb.

Is there a way to move the os to my ssd and delete the partition, or can I somehow move some of that unallocated space over beside my c drive?

(When I make a new drive to copy files over and delete d drive to free up that space I get an error saying need SYSTEM permission, even though I'm administrator. Could the problem be that this is a new pc build and I haven't actived my key? Thanks)

[wunsh]

When i click extend volume the window never appear, do you have any idea why...both are adjacent so it should work.. but nothing happen thanks

[Samuel-zlyw]

It frustrates me as to why they make this so hard! Thank you I will try when I get the chance!

[Gorilla_Jones]

I bought the pro license but none of these tools work!!! I cloned a drive of 2tb onto a 4tb and it created a recovery partition in between the unallocated space. You app doesn't allow me to move or merge, the options are greyed out even after paying the pro fee. Please advise!

[ItPutsTheLotionOnItsSkin]

Is there any performance hit after doing this, like will Windows still perform the same? And does method 2 and 3 do the exact same thing? If both are the same, then is one of them faster than the other? Because i see someone else saying they had to wait a long time, but they don't say which method they used.

[spiritualrebelgaming]

Is move function only available in pro ? It is greyed out in free version

[michaelfunches]

I think this would work for me, but there's one problem. The drive that I want to have more space is on a different disk, (Drive C is on disk 0 and D: Data is on disk 1) would you know how to fix that?

[universalworld]

thanks it's working, , , , thank you soo much

[mhnvpur]

How to merge your E: unallocated space adjacent to C:? I installed a new ssd, it is so hard to merge with C:.

[djfbthsirjtkd]

when i right click the unallocated space the merge partitions option is greyed out, what do i do?

[joeynoname]

Good video. can i download this and upgrade then use it on another pc?

[Chess_GamesOnaChannel]

If My C Drive Is in disk 1, how can i move unallocated space from disk 0 to disk 1?

[nlopedebarrios]

After merging partitions as shown in the video, the laptop doesn't finish loading files after rebooting... what should I do?

[ngpvzez]

Can you merge unallocated partitionsto the C: drive with the free version

[Broadlight]

wont even let you migrate 1 partition without asking for money. Hard Pass.