How to Free Up Space in Local Disk C on Windows 10

If you don’t know how to free up space in local disk C on Windows 10, this tutorial will provide you with various methods to clean up the C drive.

Posted by @Tina December 17, 2024 Updated By @Tina May 12, 2023

Help! My C drive became full for no reason

 

" My C drive keeps getting full. The biggest folder I have in there is Windows 10 with around 3 GB. There are no large hidden files. I check the Windows/Logs/CBS. It is only around 150 MB. I removed all downloads, temporary files, caches, etc. The freed space quickly fills up again. It did not change anything. Does anyone know how to fix it? "

- Question from answers.microsoft.com

Why need to free up space on C drive?

C drive is the disk where the Windows system is installed. When it is full, you may receive a low disk space warning. If you don't clean it up in time, it may lead to computer slowdown, computer freeze or even a blue screen problem.

Therefore, it is very necessary to understand and master how to free up space in local disk C on Windows 10.

Ways to free up disk space on Windows 10

Viruses, the default download path, a large number of junk files may be the reasons for the lack of space on the C drive. Next, we will share 4 ways to clean C drive on Windows 10.

β”‚Method 1. Disable hibernate

Hibernation mode can store the current computer state, allowing you to instantly restore your PC to where you left it. However, the hibernation mode will generate many hibernation files that take up more computer space, so we can disable hibernation to free up space on C drive.

Step 1. Press "Windows" key and type "cmd", then hit "Run as administrator" to open CMD.

Step 2. Type "powercfg -h off" and press "Enter" to disable hibernation mode.

β”‚Method 2. Delete Windows update files

Not knowing the proper way to delete Windows upgrade files, many Windows users automatically ignore them. Windows upgrade files that have not been cleaned up in time will accumulate on the C drive, taking up a lot of space.

Step 1. Enter Windows Settings, click "System", "Power & Sleep" and "Additional Power Settings" in turn.

Step 2. Click "Temporary Files", then tick "Windows Update Cleanup" and click "Remove files".

β”‚Method 3. Rebuild the search indexer

Since the Windows search database is updated from time to time, this can store a lot of unnecessary files. Therefore, cleaning and rebuilding the search database may free up space on the C drive to a certain extent.

Step 1. Open "Settings", click "Search" and "Searching Windows" in order. Click the "Advanced Search Indexer Settings" option under the "More Search Indexer Settings".

Step 2. In the popup, click the "Advanced" button. Then click the "Index Settings" tab and "Rebuild" button in turn.

A better way to fully free up space on C drive

Although the above methods can clean up the C drive to a certain extent, they cannot completely clean it up. If you want to completely clean up the C drive and speed up your PC, you can use AOMEI Partition Assistant Standard for free.

The PC Cleaner function can scan your computer, find and completely delete all junk files in your computer, even system and registry junk files. You can free up space on the C drive in a short time.

You can see how to free up space in local disk C on Windows 10 with it.

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Step 1. Download and open AOMEI, then click "Free up" and "PC Cleaner".

Step 2. Click "Start Scan" and wait for a while to find out all the junk files.

Step 3. Choose the junk files you want to delete and click "Clean All".

Step4. Wait for some minutes, then click "Back".

β”‚Extension: Delete large files to deeply clean up PC

If you want to clean your computer on a deeper level, you can turn to the Professional Version and use the "Delete Large Files" feature to find all large files, distinguishing which ones are safe to delete.

Note: When the C drive is full and you don’t want to uninstall the program, you can also use "APP Mover" to migrate some apps to another drive.

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Step 1. Open AOMEI Demo, then please click "Free up" and "Delete Large Files".

https://www.diskpart.com/screenshot/en/pro/delete-large-files/delete-large-files.png

Step 2. Choose the target partitions you want to clean and click "Start Scan".

Step 3. All the large files will be found, choose the target large files and click "Delete".

Step 4. Click "Delete Now" all the large files you chose to free up PC space.

Tips: The Server Version is designed for the Windows Server users; and the Unlimited Version is recommended for people who want to use AOMEI in groups.

Verdict

How to free up space in local disk C on Windows 10? In this page, We have shared 4 ways to free up space on C drive. In contrast, we recommend AOMEI Partition Assistant more.

Besides the mentioned features, AOMEI can also allocate free space, migrate OS to SSD, clone the whole disk, etc.