What Is C Drive in Computer? [Differences with D: Drive]

The storage units of a computer have access paths associated with them that dictate where you can access the specific storage unit.

The C drive, which is accessible through your file explorer, is found in almost all computers.

Many people know that the C drive of a computer is the main storage space, but they don’t know what the role of the C drive is, how important its function is, and to what extent it can be maneuvered.

Do you have problems related to your C or complete hard drive? This article will help you identify what the C drive is, and how to best manage and troubleshoot common issues associated with this component.

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What Is C Drive in Computer?

The C: drive in a computer is a part of the hard disk that stores the operating system, which is the computer program that manages other applications.
The C: drive in a computer can be the entire storage space on a hard drive, a part, or a logical partition defined on it.

With a physical hard disk drive, it is possible to treat it as multiple drives, each with its DOS-era name.

Yes, the C: drive is the home of the operating system. It’s the storage device that contains all the programs needed to start the computer.

Where did the “C” drive come from?

The letter naming scheme for computer drives came about when DOS was originally introduced. A drive letter is still required when using MS-DOS.

In the old days when computers booted their operating systems from floppy disks, the hard drive was called the A drive.

If the system had two floppy drives, then the second was named drive “B”.

Once the hard drive was added, it was named C to keep it in line with existing DOS procedures.

A second hard drive, a logical or physical partition, would be named drive D.

Functions of a C drive in computer

The main function of the C: drive in a computer is to provide a permanent storage medium for the operating system and other programs needed to boot the machine.

Hard drives can reliably store this much data even if they are powered off or physically removed from the computer.

The C drive is the default storage drive for Windows. The C drive might be used to store application software and device drivers.

It’s absolutely essential for the proper working of a computer.

Also, the C: drive is the default drive. It is where the operating system should find certain files during system startup.

Furthermore, C: drive stores data in an orderly manner, and keeps track of where it is.

Differences Between C and D Drives

In my opinion, it’s safe to say that both the differences between C and D: and the differences between the two legs of a duck are of the same nature!

It’s also referred to as the primary partition or the primary hard disk.

This means that your hard disk is cut into 2 parts: a main part which is called the C: (which is your hard disk where the OS resides) and the software part which is called D:

On the other hand, the ‘Data’ part (D:) is always empty on a new PC. It is used to store your downloaded and installed data.

For example, on the C: side you install your software, and on the D: side you store your data.

By leaving the c: for Windows and software, the computer will lose a lot in booting and operating speed and access to data.

Is C Drive an SSD?

Some newer computers, like MacBook Pros, don’t come with an optical drive and, instead, use a solid state drive (SSD) as the boot disk.

Both HDDs and SSDs are replacing the hard disk drive in many models, but some make sense to combine as they offer unique benefits.

The C: drive is the SSD and the D: drive is the HDD in hybrid computers.

This is just like a computer with only a Solid State Drive. It has no C: Drive. You need to do a partitioning.

The SSD completely replaces the spinning disk. It uses flash memory to store your data. You can install the SSD in place of your current hard disk drive.

The SSD has several advantages over a traditional hard drive. Among those are memory chips that store a lot of information at once, which speeds up computing.

SSD technology offers a response time that’s much better than even the fastest conventional hard disks. That means you can perform much more in a given timeframe.

Where Is the C drive on Windows 10?

The C:\ drive is where you find it on a Windows computer. The “c” is short for “C:

On your Windows keyboard, click your Windows key. Then type “Windows Explorer”.

Click on “Local Disk (C)” and you’ll be presented with a list of files,

When you double-click on this icon, you will see the contents of the “C” drive.

How to Partition a C Drive on a New PC?

You can do this with any Windows PC. You can partition a computer using the Windows Disk Management tool, the Diskpart utility, and third-party programs outside of Windows.

To perform the above operation, you have to use specific tools that are included with your copy of Windows, such as Windows Explorer.

Partitioning with Windows Disk Management

In this guide we’re going to go over the first process that we have to follow, which is to make the partition. It’s the first one because we’ll be using it to install Linux.

Access this tool by clicking on the Start menu. Right-click on This PC, and then click on Manage. Click on the C drive, and then right-click on the Unpartitioned space. You will see the option to change the size of that partition to give you more space.

Click on New Simple Volume and choose your new volume size. That’s it!

Partitioning with DiskPart

The next, more complex, utility from Microsoft is the utility DiskPart.

The hard disk is much more powerful, and can perform more sophisticated and delicate operations, even on disks that Windows cannot recognize.

But everything is done in an old-fashioned interface, in text mode, using command prompts that are typed.

A Step by Step Guide to Cleaning Up Your Hard Drive

Your hard drive or SSD is full, your computer is slow, and you need more storage space?

Here are a few tips on cleaning up temporary files, unnecessary programs, and more on a Windows PC to improve speed.

Step 1: Analyze memory

How much space is still free on the individual hard drives and partitions?

Do your apps really need to take up so much space? There’s a few things you can do to free up a bit

You can find out in the Windows settings. Press the [Windows] key and [I] key.

Go to System > Storage, then click on Disk Usage. Windows will display the used and free memory on all connected drives.

Clicking on a storage volume opens a new window that contains details about the different data types available for this volume.

Click the ‘Temporary files’ button to delete the Recycle Bin, thumbnails, and other unneeded data

Step 2: Identify storage hogs

Which type of files eat up the most portion of your hard drive?

You can easily find this out in your search box.

Select a hard drive or a folder by clicking on it.

Enter the size (for example, >100 MB) into the search field at the top right and confirm with [Enter].

This tool will find all files larger than 100 MB.

Large files (pictures) may not be necessary and can be deleted.

Step 3: Delete duplicate files

If you have lots of photos and MP3s on your computer, you may lose track and some files may be duplicated or tripled.

You can use the Duplicate Cleaner to detect duplicates. It analyzes folders or entire drives and shows them.
You can delete duplicates manually from the program.

Step 4: Uninstall programs and apps

If your hard drive is running low on space, you might want to delete unwanted programs

It’s much easier to remove this extension with the Uninstaller.

It sorts software according to categories such as “rarely used” and �

Once you’ve finished installing the software, the free uninstaller will also clean

Iobit removes browser toolbars and browser plugins.

Step 5: Clean up file history

File history is like a record of every time you’ve accessed your file. It can take up a lot of storage space over time, especially if you’re not careful about saving your files in the first place.

You should therefore regularly clear out the file history.

With the [Windows] and [i] keys, click the settings button.

First of all, go to Amazon’s Control Panel. In the search bar type File History, and then click on File History in the list of results.
Next, click on the Advanced Settings link in the left hand column.

Step 6: Delete Windows.old folders

Old Windows versions and shadow copies are saved to their folder in the System directory.

To delete the windows. old folder, use Disk Cleanup.

On the Windows search bar, type Clean Up
Then click on the button that reads Clean Up System Files
Select the C Drive
Mark Previous Windows Installation
Click on OK to delete

Step 7: Clean up with CCleaner

CCleaner is a program that removes data garbage of all kinds. It will delete unnecessary files to give your computer the extra space it needs.

Go to Cleaner and select the Delete All Data option. Then select the delete all data checkbox at the bottom of the window.

Select the Clean button and then begin to run CCleaner. You can use it to clean your system’s registry, uninstall programs, securely erase files and find duplicates.

Step 8: Back up data in the cloud

If you have large collections and you’re running low on disk space, you should consider buying an external hard drive.

Outsource the data – either on a hard drive, a cloud, such as OneDrive, or in the cloud, with Google Drive.

With this tool, you can access your data on any device, from smartphones to tablets.

How to Solve “C Drive is Full” Issue in Windows 10 – Working Tips

When the “C Drive is Full” error message pops up, it means the C drive in your computer is running out of space. You can fix this by using Disk Cleanup to clean up unwanted files.

As a solution to this issue, here are some helpful tips:
Use EaseUS Partition Master to extend your C drive space. Run the disk cleanup tool as shown earlier. Delete your temporary files. Run the program again and clear the Recycle Bin. Delete the Windows.os folder and move large files. Delete all the unnecessary programs and programs that you don’t use regularly.

How to Move Files from a C Drive to Another Drive to Free up Space?

Windows default file storage location is the C partition.

There are several file transfer methods you can use to send files back and forth from a computer to another, but the most convenient is still via the cloud.

For better comfort, it is recommended that you move your personal and computer data to another partition, disk, or another computer on the network.

In a Windows computer there are a few personal folders created by default by Windows for a user in a C drive: Contacts, Desktop, Downloads, Documents, Favorites, Links, Music, Saved Games, Searches, and Videos.

If you are using a PC with a single hard drive, I will refer to the partitions specific to Windows as C: (C stands for Computer), and the partition where you can store the user’s files will be labeled D: (D stands for Data).

If you want to access these files, then, you have to choose which partition you want to boot from. Currently, we have two partitions: OS (C:) and DATA (E:).

You’ll need to change the location of the User folder where your documents, pictures, and so on are stored.

Folders are stored in a directory. Instead of the Windows partition (“Local Disk (C:)”), the files will be stored on the DATA partition (“System Reserved (E:)”).

While considering moving the files from your C drive to another drive you should be careful as you can only move the files belonging to the Users folder.

Open the File Explorer.
C: Go to the new location (C:).
D: If you want to keep the old location for the Home folder (F:), skip steps 5 and 6.

You can create a “Users” folder, then inside another folder that has the user’s name.

Go to the “[Username]” folder. Create your own personal folders you want to move to the new default location.

Choose where you want to move folders on your hard drive. To see your current location for these folders, click the Folder button and select Explore.

Navigate to the user’s home directory by entering “%USERPROFILE%” without the inverted commas in the address bar.

Right click on a personal folder and select Properties.

Go to the Location tab and click on Move. Choose the newly created folder in the new location and click on Select Folder.

Click OK to confirm the move of the folder. Here, all the files and folders present in the Windows partition (“C:”) will be moved to the DATA partition.

To verify that the folders have been moved, go to the new location (the DATA (E:) partition).

It’s all about the “it”. You may need to say it multiple times for it to really sink in. It can be said as “It’s all about the you.

Folders with documents should now contain documents in the corresponding folder. If there are no documents yet, this means that this new feature is not activated yet.

You can easily move a user’s folders to a new partition, by right-clicking a folder and choosing “Move to a New Location.


You can only move the files in your User’s Documents folder to the D or E drive, or to another drive you have

It’s a dangerous move, but the only way to move your important files to another hard drive is to physically move

Computers have a C drive.