JET_errFileAccessDenied, Cannot access file, the file is locked or in use, Cannot see Active Directory, hr=0x80004005, ec=-501

When the Exchange mailbox database won't mount, you can't access the mailbox files, send or receive emails on Outlook or checking mailbox logs, etc. Don’t worry if you are unable to access the Exchange Server database. On this page, EaseUS software will analyze the causes of why the Exchange Server mailbox database fails to mount and offer reliable solutions to resolve this issue without losing database.

Causes of Exchange mailbox not mounting:

• Exchange Database corruption
• Missing log files
• Permission and licensing problem
• Hard drive issue - low disk space, bad sector, etc.
• Anti-virus problem

when database won't amount, you’ll receive the error messages as listed here:

1. hr=0x80004005, ec=-501
2. JET_errFileAccessDenied
3. Cannot access file, the file is locked or in use
4. Cannot see Active Directory

Relax! Here in the following, EaseUS software will show you how to fix this issue with Eseutil utility and Exchange recovery software.

Manual Method: Fix "Exchange mailbox won't mount" Error with Eseutil

Note: Remember to back up Exchange Server database including the .edb, logs, and stm files in advance before using Eseutil to fix mailbox database noting mounting error.

Step 1: Run Eseutil utility and verify the current state of Exchange database with eseutil /mh command.

If the state of Exchange Server is dirty shutdown, continue with Step 2.

If the state is clean, go to Step 4 and continue.

Step 2: Repair database with eseutil /r command

To run this command, you’ll need to request check a log file first with the following command: 

Eseutil /r E00 /l "Drive:\Exchange Server\FirstStorageGroup\Logs" /d "drive:\Exchange Server\FirstStorageGroup\MbxStore1\Mydatabase.edb" /i

Replace "Drive:\Exchange Server\FirstStorageGroup\Logs" with the real location of the log and database on your Server computer.

Step 3: Recheck the state of database with eseutil /mh command

When the state of database is clean, follow step 4 to continue.

Step 4: Repair mailbox database that won't mount with eseutil /p command

eseutil /p

Eseutil /p "mailbox database.edb"

Eseutil /p "c:\program files\exchsrvr\mdbdata\priv1.edb"

Warning

This command is a hard repair method which will delete the damaged pages and data from the database.

To avoid database loss or missing important data, back up the Exchange database first. Or turn to Exchange recovery software recommended in the next part for help.

Step 5: Run eseutil /mh command again.

When the process complete, mount the mailbox in Exchange Server again.