[Solved] CHKDSK Access Denied in CMD on Windows 10 and 11

How do you fix CHKDSK access denied as you do not have sufficient privileges? This passage offers several fixes including checking disk, formatting, and others.

Irene

By Irene / Updated on December 25, 2024

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About error CHKDSK Access Denied in CMD

It can be incredibly frustrating when you're trying to perform tasks like running CHKDSK in Command Prompt, only to be met with the message: "Access denied: you do not have sufficient privileges." This typically happens because the operation requires elevated permissions, meaning it must be run as an administrator. However, some users report that even in elevated mode, they still encounter the same "access denied" issue, which only adds to the confusion.

CHKDSK Access Denied

This error isn’t unique to CHKDSK. Similar issues can arise when trying to convert a FAT32 external drive to NTFS in Command Prompt, even if you’re logged in as the administrator and sole user of the system.

You may also face related errors, such as "You do not have sufficient rights to perform this operation," when attempting to format devices like USB drives, SD cards, CDs, or even hard drives. All these errors revolve around insufficient privileges. So, what steps can you take to ensure you have full access rights on your computer?

How to fix Access Denied CHKDSK

Before fixing, you need to generally do something necessary and helpful for resolving the "Access denied: insufficient privileges" issue in Windows. It’s important to note that some actions are restricted even for administrators. For example, files in use by running programs can’t be deleted, and partitions with open files can’t be formatted or checked. To resolve this, close the application or restart in Safe Mode.

For the C drive, which always has open files, you’ll need to schedule CHKDSK to run at the next reboot. Now, let’s look at the steps to gain full privileges.

1. Properly invoke the elevated mode

This step is fundamental. Many system operations, such as running CHKDSK, require elevated privileges. If you haven't launched Command Prompt as an administrator, the system won't grant the required permissions. Starting Command Prompt in elevated mode ensures you have the basic administrative rights needed to execute these commands. If you do not start Command Prompt in the elevated mode, try to start it this way.

Step 1. Click Start and type cmd in the Search box. Find Command Prompt, right-click and select Run as administrator.

Step 2. You should see “C:\WINDOWS\system32>” instead of “C:\Users\Administrator>”. Then, run the commands you need.

Tips: for general operations, you can press Ctrl + Shift + Enter key combinations to bring out the Command Prompt (C:\Users\Administrator>) as well.

2. Take ownership of the selected partition

Sometimes, even as an administrator, you might not have complete control over specific files or partitions due to ownership restrictions. Taking ownership allows your user account to bypass these restrictions and access the partition fully. This is particularly useful for operations like formatting or converting partitions. 

Step 1. Open Windows File Explorer. Right-click the target partition and select Properties. Go Security tab and then Advanced. You’ll see the Advanced Security Settings interface.

Step 2. Click the Change link (next to the Owner label), and then the Select User or Group dialogue will pop out. Then type your user account in the text pane under Enter the object name to select box, and then click OK.

Select User or Group

Step 3.  To provide full access to the partition for your account, you need to open the Security tab of that partition in File Explorer again. Then, click Add > Select a principle. Set permissions to Full Control and click OK to apply.

Now, see if you have “Access denied as you do not have sufficient privileges” fixed in Windows.

3. Convert Administrator User Profile

If there are multiple accounts on the computer, your account might not have administrative rights even if it seems so. Changing the user profile to an administrator ensures your account has full control over system settings and files, which is essential for executing privileged operations. You may try to convert the current user profile to the administrator user profile if there is more than one user account on the computer.

Step 1. Open Control Panel and select Change account type there. Click on your user account name. Select Administrator and click on Change account type again.

change account type

Step 2. Close the window and then see if you can run commands in CMD.

Fix CHKDSK access denied insufficient privileges in other ways

If you’re still unable to obtain sufficient privileges after trying all other methods, it’s worth exploring alternative solutions. AOMEI Partition Assistant, a trusted and free hard drive partition manager, offers a practical way to address such issues. This versatile tool is well-regarded for its effectiveness in disk management, enabling you to format USB drives, SD cards, and hard drives quickly. It also includes features like disk surface testing and partition checking—all without requiring administrative privileges.

To get started, download the free partition manager, install it, and launch the program. For instance, if you’re facing the "access denied" error due to insufficient privileges in Windows, AOMEI Partition Assistant can help resolve the issue efficiently. The process is straightforward, with clear steps that are easy to follow.

AOMEI Partition Assistant

The Best Windows Disk Partition Manager and PC Optimizer

1. Change the file system without formatting

Step 1. Run the installed software. On the top navigation pane, click “Convert” , and then choose “Convert to NTFS/FAT32”.

NTFS to FAT32 Converter

Step 2. Choose the way you want to convert. You need to choose FAT32 to NTFS in this case.

FAT32 to NTFS

Step 3. Select a FAT32 partition from the list and click Next to continue.

Choose Partition

Step 4. View the pending operation. Click Proceed to start the conversion.

Proceed

Tips: changing file system between other partition formats such as FAT32 & exFAT, NTFS & exFAT, RAW & NTFS, RAW & FAT32, is also available. For example, you can fix RAW hard drive to NTFS in simple steps.

3. Format external storage quickly

Step 1. Open AOMEI Partition Assistant and find the partition you’d like to format. Right-click it and select Format Partition.

Step 2. Edit partition label, choose file system and cluster size in the popping up window.

NTFS

Step 4. Click Apply and then Proceed to apply the change. Other features of the software are also remarkable. If you need, you can check the advanced version.

Conclusion

The CHKDSK Access Deniedor performing other administrative tasks in Command Prompt can be frustrating. However, with the right steps—such as running Command Prompt in elevated mode, taking ownership of partitions, or converting your user profile to an administrator—you can often resolve these issues effectively. When standard methods fall short, leveraging tools like AOMEI Partition Assistant provides an excellent alternative for managing disk-related tasks without requiring elevated privileges. By following these solutions, you can overcome access restrictions and ensure smooth operation of your system.

Irene
Irene · Staff Editor
Irene is an Editor of AOMEI Technology. She devotes herself in giving insightful thoughts on common computer problems with simple and clear guidance. Irene loves to help people solve problems and explore more solutions on relevant issues. She loves reading, singing and travelling.