Hello Anand Purushottam,
Thank you for posting in Microsoft Community forum.
I'm sorry to hear that you're experiencing these issues. Let's try to troubleshoot your problems step-by-step.
BitLocker Access Denied
- BitLocker Drive Unlock via Control Panel:
- Since you can unlock the D drive via Control Panel > BitLocker Management, this suggests BitLocker encryption is working correctly, but there might be an issue with how Windows Explorer is handling the drive access.
- Group Policy Editor:
- Open the Group Policy Editor by pressing
Win + R
, typegpedit.msc
, and press Enter. - Navigate to
Computer Configuration -> Administrative Templates -> Windows Components -> BitLocker Drive Encryption
. - Verify that settings here haven't changed.
- Open the Group Policy Editor by pressing
- Reset BitLocker:
- If possible, decrypt the drive and then re-encrypt it to see if it resolves any underlying issues.
- Open Control Panel > BitLocker Drive Encryption > Turn Off BitLocker for the D drive.
- Once decrypted, restart the system.
- Turn BitLocker back on and encrypt the drive again.
Drive Properties > Access Denied
- Permissions Check:
- Right-click on the drive D:, select "Properties", go to the "Security" tab.
- Check if your user account has full control.
- If not, click "Edit" and add your user account with full control permissions.
- Ownership:
- Sometimes, Windows updates can change the ownership of files and folders.
- Right-click the drive, select "Properties", go to the "Security" tab, click "Advanced".
- Check the owner at the top. If the owner is not your user account or
Administrators
, click "Change" and set it to your user account. - Make sure to check "Replace owner on subcontainers and objects".
- Check System Files:
- You already ran
sfc /scannow
, but let's also try the Deployment Imaging Service and Management Tool (DISM). - Open Command Prompt as an Administrator and run:
DISM /Online /Cleanup-Image /RestoreHealth
- After it completes, restart your computer and see if the issue persists.
- You already ran
Potential Windows Update Issue
- Rollback the Update:
- If the issue started after the Windows 11 update, you might want to roll back to the previous version temporarily to see if the update is the culprit.
- Go to
Settings > Update & Security > Recovery > Go back to the previous version of Windows 11
.
- Check for Additional Updates:
- Sometimes, bugs in updates are fixed quickly by Microsoft.
- Go to
Settings > Update & Security > Windows Update
and check for any new updates.
If All Else Fails
- System Restore:
- If you have System Restore enabled, try reverting to a point before the update.
- Go to
Control Panel > System and Security > System > System Protection > System Restore
.
- In-Place Upgrade/Repair:
- As a last resort, you can perform an in-place upgrade to repair your Windows installation without losing data.
- Download the Windows 11 Installation Media from Microsoft, run the installer, and choose the "Upgrade this PC now" option. Be sure to select the option to keep your files and apps.
I hope the information above is helpful.
If you have any question or concern, please feel free to let us know.
Best Regards,
Haijian Shan