The error: Access denied as you do not have sufficient
It is quite annoying that when you want to do some operations to your disk like run
CHKDSK in Command Prompt only to get the return message: Access denied you do not
have sufficient privileges. You have to invoke this utility running in elevated
mode. It says “elevated mode” is required. However, some users complain that they
get CHKDSK access denied in elevated mode as well. Really weird!
The same error would also appear when you try to convert FAT32 external hard drive to
NTFS in CMD, even if you are the only user of that computer and the
A similar error message about privileges, You do not have sufficient rights to
perform this operation, will also occur if you try to format a disk like SD card,
pen drive, USB flash drive, CD drive, or hard drive. All of them are talking about
privileges. Then how do you get the full privileges of the computer?
How to get sufficient privileges in Windows 7/8/10?
Before getting to know how to get privileges, you need to aware of that there are
some things even an administrator cannot do. For instance, a file that is locked by
a running program cannot be deleted or a partition that has files open cannot be
formatted or checked. You have to stop the application first or reboot to a safe
mode where nothing’s using the drive.
The operating system partition has open files on it all the time. Thus, schedule a
disk checking at the next reboot will be the only way to run CHKDSK on C drive. To
get full privileges, you have several choices to follow. Let’s take a closer
Properly invoke elevated mode
If you’re not start Command Prompt in the elevated mode, try to start it this
1. Click Start and type cmd in the Search box.
2. Find Command Prompt, right click and select Run as administrator.
3. 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.
Take ownership of the selected partition
Try the second way to have the ownership of the partition if the first one still does
1. Open Windows File Explorer. Right click the target partition and select Properties.
2. Go Security tab and then Advanced. You’ll see
the Advanced Security Settings interface.
3. Click the Change link (next to the Owner label), and then the
Select User or Group dialogue will pop out.
4. Type your user account in the text pane under Enter the object name to
select, and then click OK.
5. To provide full access to the partition for your account, you need to open the
Security tab of that partition in File Explorer again.
6. 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
Convert Administrator User Profile
You may try to convert current user profile to the administrator user profile if
there is more than one user account on the computer.
1. Open Control Panel and select Change account type there. Click on
your user account name.
2. Select Administrator and click on Change account type again.
3. Close the window and then see if you can run commands in CMD.
Solve access denied in Command Prompt error in another way
If you still cannot get the sufficient privileges after all those attempts, it is a
wise move to complete tasks through other ways. AOMEI Partition Assistant Standard
is a free hard drive partition manager that earns its own reputation in disk
maintenance. It allows you to format USB drive, SD card, Pen drive fast and
effective, and perform disk surface test and partition checking successfully. No
In the first place, free download the partition
manager, install and launch it. Take fixing access denied as you do not have
sufficient privileges in Windows 7 trouble through AOMEI Partition Assistant for
example. All steps are easy to follow.
Check hard drive partition for errors
A. In AOMEI Partition Assistant Standard, right click the partition you want to check
and select Advanced > Check Partition.
B. Find the disk you want to check, right click it and select Surface
Test. In the next window, tick Quick Check and click
Tips: for more information about disk checking, please refer to check and
fix hard disk errors in Windows 10.
Convert FAT32 to NTFS without formatting
1. Install and run AOEMI Partition Assistnat Professional, click NTFS to
FAT32 Converter in the left pane.
2. Choose the way you want to convert. You need to choose FAT32 to
NTFS in this case.
3. Select a FAT32 partition from the list and click Next to
4. View the pending operation. Click Proceed to start the
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.
Format external storages quickly
1. Open AOMEI Partition Assistant Standard and find the partition you’d like to
2. Right click it and select Format Partition.
3. Edit partition label, choose file system and cluster size in the popping up
4. Click Apply and then Proceed to apply the
Other features of the software are also remarkable. For example, the advanced version
of the free edition Professional supports doing all
the disk operations in Command Prompt.
When you get the “Access denied as you do not have sufficient privileges” error while
run CHKDSK, formatting or FAT32 conversion in Windows 7/8/10, you can take some
measurements to get full privileges. If that does not work, turn to another
partition tool is not a bad choice.
AOMEI Partition Assistant also does a great job in OS to SSD migration,
disk cloning, MBR & GPT conversion, C drive extending, SSD securely erasing,
etc. You may want to have this tool to manage your hard drive better.