5 Ways to Fix Not Enough Disk Space for Windows 10 Update
Are you trying to update Windows 10 to the latest version, but failed due to not enough disk space? In fact, Windows 10 updates have certain requirements for the storage space on the operating system drive. If there is not enough free space on the C drive, the update cannot be completed and you will receive the "Windows needs more space" error message. This is the case even if you use the Windows 10 Update Assistant. So, what should you do when there is not enough space for Windows 10 update? Now, on this page, we will show you five really effective ways to fix this problem.
How much space does Windows 10 update need?
According to Microsoft, to update to Windows 10 version 1809 (released in November 2018), 16GB of free space was required for 32-bit OS and 20GB for 64-bit OS. To update to Windows 10 version 1909 (November 2019) or version 1903 (May 2019), 32GB free space is required for both 32-bit and 64-bit OS. (Tips: How to Check If Your Windows 10 Is 32-Bit or 64-Bit)
5 ways to solve not enough disk space for Windows 10 update
- Way 1: Clean the C drive to make enough space
- Way 2: Extend the C drive to get enough space
- Way 3: Update Windows 10 using an external drive
- Way 4: Update Windows 10 with Media Creation Tool
- Way 5: Move Windows 10 to a larger hard drive
Way 1: Clean the C drive to make enough space
When there is not enough space for Windows 10 update, the simplest and most straightforward way is to clean the C drive to make space. In general, you can reclaim a few GB of space by emptying the Recycle Bin, deleting temporary files and removing unneeded apps and personal files. If necessary, perform a more in-depth cleanup of your C drive with iSumsoft System Refixer, which helps free up more than 10GB of space.
Tips: If you want to delete similar or identical files on your drive to get more spcae on C drive, it is suggested to use a professional duplicate files remover named iSumsoft DupFile Refixer. This is a poweful and reliable tool that can help you locate and clean up duplicate files on C drive at ease instead of searching for them one by one.
Way 2: Extend C drive to get enough space
If you cannot free up enough space, or your C drive itself has a very small total storage space (less than 50GB), then it's a good idea to extend your C drive to get enough space for Windows 10 update.
Step 1: Open Disk Management by right clicking the Windows icon and selecting Disk Management.
Step 2: In the Disk Management window, check whether there is unallocated space behind the C drive. If there is, just right-click the C drive and select Extend Volume to add the unallocated space to it.
If there is not unallocated space behind C drive, consider merging D drive to C drive so that you can get more free space on C drive. The D drive here refers to the drive adjacent to the C drive.
Way 3: Update Windows 10 using an external drive
When there is not enough space on your internal drive for Windows 10 update, you can use an external storage device like USB flash drive and external hard drive to complete the update. Now I will use the Windows 10 Update Assistant to illustrate the steps.
Step 1: Run Windows 10 Update Assistant and click Update Now. Click Next to proceed.
Step 2: When you get the message "Windows needs space to update", connect an external storage device with enough free space to your computer, select the external drive from the drop-down menu and then click Next.
Step 3: Windows is preparing the update. This takes a few minutes.
Step 4: When the update is ready, Windows 10 Update Assistant requires you to restart your PC to complete the update. Just click Restart now and then wait for the update to complete.
方法 4: メディア作成ツールを使用して Windows 10 を更新する
最新バージョンの Windows 10 にアップデートするには、Microsoft のメディア作成ツールを使用することも可能な方法です。
オプション 1: Windows 10 を直接更新する
ステップ 1: メディア作成ツールをダウンロードし、Windows 10 で実行します。
ステップ 2: Windows 10 セットアップ ウィザードが開いたら、[同意する] をクリックしてライセンス条項に同意します。 「この PC を今すぐアップグレードする」を選択し、「次へ」をクリックします。画面上の手順に従ってアップデートを完了します。
オプション 2: クリーン インストールを実行する
他の方法で Windows 10 をアップデートできない場合は、C ドライブを消去し、最新バージョンの Windows 10 をインストールするクリーン インストールが良い選択です。これにより、Windows 10 アップデートに必要なディスク容量が不足するという問題が回避されます。もちろん、始める前に重要なデータをバックアップする必要があります。
ステップ 1: メディア作成ツールを使用して起動可能な USB ドライブを作成します。これにより、最新バージョンの Windows 10 が USB ドライブに書き込まれます。
ステップ 2: コンピューターを再起動し、BIOS 設定を入力します。 [起動] オプションに移動し、USB ドライブから起動するようにコンピューターを設定します。
ステップ 3: コンピューターが起動したら、画面上の指示に従ってインストールを完了します。
方法 5: Windows 10 OS をより大きなハードドライブに移動する
ディスク容量が足りないときに Windows 10 を更新する方法を見つけるのに苦労するのではなく、ハード ドライブをより大きなドライブに交換してみてはいかがでしょうか?ハードドライブのアップグレードは長期的な解決策です。十分な容量がない状況で Windows 10 を正常にアップデートしたとしても、今後の使用やアップデートでディスク容量不足の問題が再び発生する可能性があるためです。
ステップ 1: より大きなハードディスク (または SSD) をコンピューターに取り付けます。
ステップ 2: Windows 10 に無料の iSumsoft Cloner ツールをインストールして実行します。コピー 機能を使用して、Windows 10 OS をより大きなハード ドライブにコピー/移動します。
ステップ 3: コンピューターを再起動し、より大きなハードドライブから起動するようにします。 Windows 10 が大容量のハード ドライブ上で実行されている場合、空き容量が不足するという問題を抱えずに、スムーズに最新バージョンにアップデートできます。
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