BitLocker Drive Encryption Service - Windows 7 Service
BDESVC hosts the BitLocker Drive Encryption service. BitLocker Drive Encryption provides secure startup for the operating system, as well as full volume encryption for OS, fixed or removable volumes. This service allows BitLocker to prompt users for various actions related to their volumes when mounted, and unlocks volumes automatically without user interaction. Additionally, it stores recovery information to Active Directory, if available, and, if necessary, ensures the most recent recovery certificates are used. Stopping or disabling the service would prevent users from leveraging this functionality.
This service also exists in Windows 10, 11 and 8.
Startup Type
| Windows 7 edition | without SP | SP1 |
|---|---|---|
| Starter | Manual | Manual |
| Home Basic | Manual | Manual |
| Home Premium | Manual | Manual |
| Professional | Manual | Manual |
| Ultimate | Manual | Manual |
| Enterprise | Manual | Manual |
Default Properties
| Display name: | BitLocker Drive Encryption Service |
| Service name: | BDESVC |
| Type: | share |
| Path: | %WinDir%\System32\svchost.exe -k netsvcs |
| File: | %WinDir%\System32\bdesvc.dll |
| Error control: | normal |
| Object: | localSystem |
| Privileges: |
|
Default Behavior
The BitLocker Drive Encryption Service runs as localSystem in a shared process. It shares the executable file with other services. If the BitLocker Drive Encryption Service fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the BDESVC service has failed to start.
Restore Default Startup Type of BitLocker Drive Encryption Service
Automated Restore
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreBitLockerDriveEncryptionServiceWindows7.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the bdesvc.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 7 installation media.