> Not enough space for Windows 10

Not Enough Space for Windows 10 Upgrade or Anniversary Update – Solved

Overview of Not Enough Space for Windows 10 Upgrade or Anniversary Update

Though the free Windows 10 upgrade offer may technically be over, Windows 7 or Windows 8.1 users who are using assistive technologies still qualify for the free upgrade, and probably every Windows 7 or Windows 8.1 user might be able to free upgrade since Microsoft doesn't ask for any evidence that you actually use such technologies.

In addition, Microsoft has released Windows 10's second big update "Anniversary Update", which contains lots of changes. For instance, Windows 10 interacts with Android Phone or Windows Phone; More Desktop Apps and Games Come to the Windows Store. Therefore, many users are planning to install Windows 10 anniversary update. And you might be one of them.

Nevertheless, when you are upgrading Windows 7/8.1 to Windows 10, installing new build of Windows 10, or installing Windows 10 anniversary update, you may receive the error message "Windows needs more space".

windows 10 needs more space error

And sometimes even taking recommended ways, you are still unable to complete the upgrade or update.

Under this situation, if someone told you there is a solution, you might be eager to try it out, right?

If your answer is Yes, you are reaching the right place, because this post will show you several ways to quickly fix the "not enough space for Windows 10 upgrade or anniversary update" error. But before introducing exact solutions, let's see how much space Windows 10 upgrade or anniversary update requires.

How Much Space Is Required for Windows 10 Upgrade or Anniversary Update

To upgrade to Windows 10, we'd better prepare 16GB free space in drive C for 32 bit OS and 20GB for 64 bit OS, which is recommended by Microsoft. Of course, more space is better. Installing Windows 10 anniversary update requires the same storage space.

In addition, since Microsoft gives users a chance to rollback Windows 10 to Windows 7 or Windows 8.1, there will be a folder called Windows.old created in drive C, which could take several GB of space. Therefore, upgrading to Windows 10 requires more space in C drive than usual upgrade.

If your C drive doesn't have enough free space, you may receive the "Windows needs more space" error when upgrading or updating Windows 10. Then, you need to take one of the following solutions.

6 Solutions to "Not Enough Space for Windows 10 Upgrade or Anniversary Update" Error

Solution 1: Add More Space to Drive C
Solution 2: Upgrade Small SSD or HDD to Larger One
Solution 3: Remove Useless Files and Apps
Solution 4: Clear Drive C to Free up Space
Solution 5: Use Another Drive or Attack an External Drive
Solution 6: Upgrade or Update Using Media Creation Tool


If Windows 10 is running on HDD or SSD, you can try all these 6 methods. But if Windows is running on embedded Multimedia Card (eMMC for short), which is storage widely used on tablets and cheap laptops, the former 2 solutions might be useless for your case.

Note
Some tablet users mistakenly think they are using SSD but actually using eMMC, which is largely because manufacturers or resellers introduce it vaguely. For example, Amazon describes HP Stream 13.3-Inch Laptop with Windows 10 installed uses 32GB SDD, but it actually employs 32GB Solid-State eMMC Storage. So, please carefully check the storage of your Windows 7, Windows 8.1, or Windows 10 device.


Then, let's see these solutions one by one.

Solution 1: Add More Space to Drive C

Since C drive doesn't have enough free space for Windows 10 upgrade or Windows 10 anniversary update, to enlarge this drive is a good choice if there are extra partitions having free space available. And MiniTool Partition Wizard Free Edition could help you complete this operation in very simple steps and without data loss.

Further Reading
MiniTool Partition Wizard is a free partitioning tool that can help users extend a full partition (especially C drive), recover lost partition, rebuild MBR, align partitions on SSD, and do lots of other partitioning operations under Windows XP, Vista, Windows 7, Windows 8/8.1, and Windows 10. Now, download this freeware to view all its amazing functions.



After downloading and installing this program to one of drives that you will not operate, please launch it to get the window below:

extend partition

Here, all disks and their partitions are shown clearly. To extend drive C, please select this drive and choose "Extend Partition" feature from the left side.

take free space from

In this window, please choose an existing partition or unallocated space from the drop-down list of "Take Free Space from", and drag sliding handle to decide how much free space to take to enlarge drive C. Then, click "OK" to continue.

apply

Now we can see drive C is enlarged, so please click "Apply" button to make this change finally executed.

Once drive C is enlarged, you can restart upgrading to Windows 10 or installing Windows 10 anniversary update.

Of course, you can choose to upgrade your small SSD or HDD.

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Solution 2: Upgrade Small SSD or HDD to Larger One

You can complete disk upgrade without reinstalling Windows as well as installed programs, and it requires simple operations. At first, you should connect both source disk and target disk to the computer, and then use MiniTool Partition Wizard Free Edition to copy disk.

Step 1: Launch the software to enter the main interface. Then, select the source disk and click on "Copy Disk" from the left action panel to continue.

copy disk

Step 2: Select the target disk which is used to clone small SSD or HDD, and click on "Next" to continue.

select target disk

Step 3: This interface enables you to review the changes after copying disk. Here, you can also choose a suitable copy options according to your personal situations. Then, click on "Next" to continue.

copy options

Step 4: This interface tells you how to boot from the destination disk. Then click on "Finish" to go back to the main interface.

boot from

Step 5: Press "Apply" and then this software will inform you to restart the computer. Just do it.

restart

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After the clone is completed, you can boot Windows 7/8.1 or Windows 10 from the larger disk and then restart Windows 10 upgrade or anniversary update.

Top Recommendation

Quickly Move Windows 7/8/8.1/10 to SSD or Upgrade HDD to SSD
Plan to upgrade your computer's HDD to SSD or Move Windows 7/8/8.1/10 to SSD on either laptop or desktop? Follow this tutorial to quickly complete it.


Nevertheless, if you are unwilling to use third party program though it is free, you can employ solutions given by Windows Setup or Update.

"Windows needs more space" error is always coming with 3 recommended solutions:
  • Remove any files and apps that you no longer need.
  • Use Disk Cleanup to free up space.
  • Choose another drive or attack an external drive.

So, you can try one of these 3 methods.

Solution 3: Remove Useless Files and Apps

To remove files, just select and delete them. But to remove apps, you'll need to uninstall them in Control panel or using third party programs.

Solution 4: Clear Drive C to Free up Space

Different operating system requires different operations to clean hard drive, so we introduce it separately.

In Windows 7 and Windows 10:
Click Start start button button, type Disk Cleanup in Search box, run this program as administrator, choose drive C to clean, check files to delete, and click "OK".

In Windows 8.1:
Go to Control Panel, then System and Security, and choose "Free up disk space".

free up space in Windows 8.1

Then, choose C drive to clean up, check files you want to delete, and click "OK" to perform deletion.

Solution 5: Use an External Drive

You can use an external drive, like USB flash disk, USB hard disk, and SD card, if you cannot free up enough space on drive C to upgrade to Windows 10 or install Windows 10 anniversary update.

After the external drive is connected, please tap on "Choose another drive or attack an external drive with recommended capacity available", and then select the drive letter of the external drive to go on upgrading or updating.

Tip: If you want to rollback Windows 10 to Windows 7 or Windows 8.1, you'll need the data Windows 10 upgrade installs on the external drive.


Nevertheless, some users reported that they still receive not enough space for Windows 10 upgrade or anniversary update error though C drive has enough free space. In this case, please try our last method.

Solution 6: Upgrade or Update Windows 10 Using Media Creation Tool

Media Creation Tool makes it much easier to upgrade Windows 7 or 8.1 to Windows 10 or update Windows 10 to the latest version. Please do upgrade or update by following these steps:
Step 1: Download Media Creation Tool from Microsoft.
Step 2: Run MediaCreationTool.exe.
Step 3: Choose "Upgrade this PC now".
Step 4: Select "Keep personal files and apps".
Step 4: Let it install.

After these steps, you should have Windows 10 or Windows 10 anniversary update.

Not enough free space to upgrade to Windows 10 or install Windows 10 anniversary update? Now try one of our solutions to fix this issue. Good luck to you.

Other Issues Related to Windows 10 Upgrade or Anniversary Update

Apart from "Windows needs more space" error, you may encounter many other problems when upgrading to Windows 10 or installing Windows 10 anniversary update. Here, we introduce 3 typical cases.

1. We couldn't update the system reserved partition.


we couldn't update system reserved partition error

This error message appears largely because there is not enough free space in system reserved partition or EFI system partition for Windows 10 upgrade. So, to fix this issue, users need to add more space to this partition. Please view the post Quickly Fix: Windows 10 Upgrade Couldn't Update System Reserved Partition to get specific steps.

2. Windows 10 Anniversary Update Deleted Partitions.

Lots of users complaint that one or some of their partitions got lost after finishing Windows 10 anniversary update. But luckily, you are able to recover all your lost partitions. For detailed steps, please see How to Fix: Partition Disappears in Windows 10 Anniversary Update.

3. C Drive Is Full after Successful Upgrade or Update.

After upgrading to Windows 10 or installing Windows 10 anniversary update successfully, you may find drive C is running in low disk space. You can choose to delete unnecessary files/folders to release free space. For example, you can delete the Windows.old folder, if you do not plan to downgrade from Windows 10 to Windows 7 or 8.1.

Alternatively, you can choose to add more space to drive C if other partitions have much free space available. MiniTool Partition Wizard Free Edition could help you enlarge C drive without affecting data.

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Now download the freeware MiniTool Partition Wizard to extend drive C, recover lost partition(s), or do other partitioning operations in Windows.



Bottom Line

Should you have any problem on upgrading or updating Windows 10, just let us know, and we will try our best to help you out. You can either leave us message in Comments part or send us emails to [email protected].