AOMEI Partition Assistant
How Can I Increase Available Space on C: Drive in Windows 10?
How can I increase available space on my C: drive in Windows 10? This guide has the answers! By following the steps outlined, you can efficiently free up valuable disk space on your C: drive.
By Gia / Updated on May 15, 2025
Why My C: Drive Runs Out of Space?
Is your Windows 10 computer starting to feel sluggish? Are those annoying "Insufficient Disk Space" warnings popping up more frequently? If so, it's time to increase the available space on your C: drive. Before we dive into solutions, let’s quickly explore why your C: drive fills up in the first place. Here are some common causes of insufficient space on the C: drive:
🎮 Large Programs and Applications: Installed software, especially large games or creative suites, can consume many gigabytes.
⬆️ Windows Updates: Windows updates create temporary files and can leave behind older system files that take up space.
📂 Personal Files: Your documents, pictures, videos, and music can quickly fill up storage, particularly high-resolution media.
⏳ Temporary Files and Cache: Internet browsing and system usage generate large temporary files and cache data that accumulate over time.
🗑️ Recycle Bin: Deleted files remain in the Recycle Bin, continuing to use disk space until it's emptied.
How Can I Increase Available Space on C: Drive in Windows 10?
Fortunately, there are several effective methods to increase the space on your C: drive. By combining built-in tools with powerful third-party software, you can significantly expand the available space on the C: drive in Windows 10.
Method 1. Remove Unused Programs
One of the quickest ways to free up significant space is by uninstalling programs you no longer use. Over time, we install software for specific tasks, try out new applications, or forget about utilities that are no longer necessary. These programs and their associated files can consume gigabytes of storage without you even realizing it.
Follow these steps to uninstall programs to increase the space of your C: drive in Windows 10:
Step 1: Press Windows + I to open Windows Settings.
Step 2: Go to Apps > Apps & features.
Step 3: Click on an app you want to uninstall. An Uninstall button will appear.
Step 4: Click Uninstall. You might see a confirmation prompt; click Uninstall again.
Method 2. Clean Up Junk Files on C: Drive
The system and the applications you use constantly generate temporary files, cache data, and other junk files that silently consume space on your C: drive. To perform a deep clean of these unnecessary files, you can use AOMEI Partition Assistant. This professional and user-friendly disk management tool supports cleaning various types of junk files on Windows PCs. With just a few clicks, you can effectively increase the available space on your C: drive.
100% SecureHere's how to clean up junk files on your C: drive using AOMEI Partition Assistant:
Step 1: After installing AOMEI Partition Assistant on your PC, launch it and go to Free up > PC Cleaner.
Step 2: In the pop-up window, click Start Scan to scan for junk files.
Step 3: After the scan process is completed, System Junk Files and Registry Junk Files will be listed. By default, all System Junk Files are ticked. Depending on your needs, tick the options you want to clean, and then click Clean All to start the cleaning process.
Step 4: The cleaning process will start, and the selected files will be cleaned up.
Method 3. Extend C: Drive with Adjacent Unallocated Space
Can I increase my C: drive space without deleting anything? Sure! If your C: drive partition was created too small, simply deleting files or uninstalling programs may not solve the low disk space issue. In such cases, you may need to increase the size of the C: drive partition itself. Windows provides a built-in tool called Disk Management that can help you do this.
Here's how to increase the space of the C: drive using this tool:
Step 1. Press Windows + R to open the Run dialogue.
Step 2. Input diskmgmt.msc and hit Enter to open Disk Management.
Step 3. Right-click the C: drive and choose Extend Volume.
Step 4. Follow the on-screen prompts to extend your C: drive.
Method 4. Allocate Free Space to C: Drive
Instead of manually adjusting partition size, AOMEI Partition Assistant provides the "Allocate Free Space" feature to directly transfer a specified amount of free space from one partition (like your D: drive, if it has plenty of free space) to your C: drive in a single operation. This eliminates the need for adjacent unallocated space and simplifies the process significantly, making it a convenient way to increase the space of the C: drive.
100% SecureFollow these steps to increase available space on your C: drive by using free space from another partition:
Step 1: Right-click the D: drive and choose Allocate Free Space.
Step 2: In the new window, you can specify the space size and target partition ( C: drive). Then, click OK.
Step 3: Now, you can preview that the C: drive has been extended. Then, click Apply to save the changes.
Conclusion
How can I increase available space on my C: drive in Windows 10? This guide outlines 4 effective solutions. By implementing the methods discussed, you can ensure your C: drive has adequate free space, leading to improved performance and a smoother computing experience.
