accidentally denied access to disc c having operating system Windows 11 home how to fix?

[R-o_17]

error code 0x800704b3

Product name : HP Laptop 15q-ds0xxx

problem:accidentally denied access to disc c having operating system Windows 11 home how to fix?

[Raj_05]

Hi @R-o_17,

Welcome to HP Support Community.  

Thank you for posting your query, I will be glad to help you.

If you have accidentally denied access to the "C" drive on your HP Notebook running Windows 11 Home, you might encounter various issues since it contains the operating system files and essential system data. The error code "0x800704b3" typically indicates an issue with permissions.

To resolve this problem, you can try the following steps:

Restart your computer: Sometimes, a simple restart can fix temporary issues. So, before attempting any other solution, restart your HP Notebook and check if the problem persists.

Use Safe Mode: Booting into Safe Mode might allow you to regain access to the "C" drive. To do this:

• Restart your computer.
• During the boot process, press and hold the "Shift" key until the Advanced Recovery Options screen appears.
• Select "Troubleshoot" > "Advanced options" > "Startup Settings" > "Restart."
• When the computer restarts, choose "Enable Safe Mode" or "Safe Mode with Networking" if you require internet access.
• After entering Safe Mode, check if you can access the "C" drive and adjust its permissions if necessary.

Using a Different User Account: Sometimes, the issue might be specific to the user account you are using. Create a new user account with administrative privileges and check if you can access the "C" drive from the new account. If successful, you can transfer your files and settings to the new account and continue using it.

Using Command Prompt: You can try using the Command Prompt with administrative privileges to change the permissions for the "C" drive. Here's how.

• Press "Windows + X" and select "Windows Terminal (Admin)" or "Command Prompt (Admin)" from the menu that appears.
• If prompted, allow the app to make changes to your device.
• In the Command Prompt window, type the following command and press Enter:
• This command grants full access to the "Users" group on the "C" drive. After executing the command, check if you can access the "C" drive.

System Restore: If you have a system restore point created before the issue occurred, you can use it to revert your system to a previous state when the "C" drive access was not a problem. This might help in restoring the permissions.

• Press "Windows + R" to open the Run dialog, then type "rstrui" and press Enter.
• Follow the on-screen instructions to choose a restore point and restore your system.

Windows Recovery Environment (WinRE): If none of the above solutions work, you can try using the Windows Recovery Environment to troubleshoot the issue further.

• Restart your computer and press the necessary key (usually F11 or F12) to access the boot menu or recovery options.
• Choose "Troubleshoot" > "Advanced options" > "Command Prompt."
• In the Command Prompt window, try running the "sfc /scannow" command to scan for and repair system file issues.

Backup and Reinstall Windows 11: If all else fails, you might have to back up your important data from the "C" drive (if possible) and then reinstall Windows 11. During the installation process, you can format the "C" drive and perform a clean installation.

I hope this helps. 
 

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

Alden4
HP Support 

[A_Gayathri]

Hi @R-o_17,

Welcome to HP Support Community.  

Thank you for posting your query, I will be glad to help you.

If you have accidentally denied access to the "C" drive on your HP Notebook running Windows 11 Home, you might encounter various issues since it contains the operating system files and essential system data. The error code "0x800704b3" typically indicates an issue with permissions.

To resolve this problem, you can try the following steps:

Restart your computer: Sometimes, a simple restart can fix temporary issues. So, before attempting any other solution, restart your HP Notebook and check if the problem persists.

Use Safe Mode: Booting into Safe Mode might allow you to regain access to the "C" drive. To do this:

• Restart your computer.
• During the boot process, press and hold the "Shift" key until the Advanced Recovery Options screen appears.
• Select "Troubleshoot" > "Advanced options" > "Startup Settings" > "Restart."
• When the computer restarts, choose "Enable Safe Mode" or "Safe Mode with Networking" if you require internet access.
• After entering Safe Mode, check if you can access the "C" drive and adjust its permissions if necessary.

Using a Different User Account: Sometimes, the issue might be specific to the user account you are using. Create a new user account with administrative privileges and check if you can access the "C" drive from the new account. If successful, you can transfer your files and settings to the new account and continue using it.

Using Command Prompt: You can try using the Command Prompt with administrative privileges to change the permissions for the "C" drive. Here's how.

• Press "Windows + X" and select "Windows Terminal (Admin)" or "Command Prompt (Admin)" from the menu that appears.
• If prompted, allow the app to make changes to your device.
• In the Command Prompt window, type the following command and press Enter:
• This command grants full access to the "Users" group on the "C" drive. After executing the command, check if you can access the "C" drive.

System Restore: If you have a system restore point created before the issue occurred, you can use it to revert your system to a previous state when the "C" drive access was not a problem. This might help in restoring the permissions.

• Press "Windows + R" to open the Run dialog, then type "rstrui" and press Enter.
• Follow the on-screen instructions to choose a restore point and restore your system.

Windows Recovery Environment (WinRE): If none of the above solutions work, you can try using the Windows Recovery Environment to troubleshoot the issue further.

• Restart your computer and press the necessary key (usually F11 or F12) to access the boot menu or recovery options.
• Choose "Troubleshoot" > "Advanced options" > "Command Prompt."
• In the Command Prompt window, try running the "sfc /scannow" command to scan for and repair system file issues.

Backup and Reinstall Windows 11: If all else fails, you might have to back up your important data from the "C" drive (if possible) and then reinstall Windows 11. During the installation process, you can format the "C" drive and perform a clean installation.

I hope this helps. 
 

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

Alden4
HP Support