How to fix Error 3195 on Windows Server 2025 / Windows 11

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Troubleshooting Guide: Error 3195 – Page Restore Failure in SQL Server 2025

Why This Error Happens

This error occurs because SQL Server’s page-level restore feature has strict requirements about which backup sets can be used to repair a damaged page. Specifically, RESTORE PAGE only works with full backups, or with the very first log/differential backup taken after a file was added to the database, because earlier backups lack the complete allocation metadata needed to reconstruct the page safely. Attempting to apply a later differential or an out-of-sequence log backup causes SQL Server to reject the operation since it cannot guarantee page consistency.

Step-by-Step Resolution Guide

Step 1: Identify the Correct Backup Chain

  • Query msdb.dbo.backupset and msdb.dbo.backupfile to determine when the affected data file was added to the database.
  • Run: SELECT bs.backup_set_id, bs.type, bs.backup_start_date, bf.file_id FROM msdb.dbo.backupset bs JOIN msdb.dbo.backupfile bf ON bs.backup_set_id = bf.backup_set_id WHERE bf.file_id = <YourFileID>;
  • Confirm whether you are trying to restore from a differential/log backup taken after the first one following the file’s addition — this is the usual cause.

Step 2: Start the Restore from a Valid Full Backup

  • Begin the RESTORE PAGE sequence using the most recent full backup that contains the damaged page.
  • Example command: RESTORE DATABASE [YourDB] PAGE='1:258' FROM DISK = 'C:\Backups\YourDB_Full.bak' WITH NORECOVERY;
  • Ensure the backup file path is accessible and not corrupted (verify using RESTORE VERIFYONLY FROM DISK = 'C:\Backups\YourDB_Full.bak';).

Step 3: Apply Only the First Differential/Log Backup Since the File Was Added

  • If a differential backup is needed, use only the one taken immediately after the file was added — not a later one.
  • Example: RESTORE DATABASE [YourDB] FROM DISK = 'C:\Backups\YourDB_Diff1.bak' WITH NORECOVERY;
  • Skip any subsequent differential backups; move directly to transaction log backups instead.

Step 4: Roll Forward Through the Transaction Log Chain

  • Apply all subsequent log backups in sequential order without gaps.
  • Example: RESTORE LOG [YourDB] FROM DISK = 'C:\Backups\YourDB_Log1.trn' WITH NORECOVERY;
  • Continue until you reach the most recent available log backup, then finish with WITH RECOVERY.

Step 5: Validate File and Permission Integrity

  • Check that the SQL Server service account has read access to the backup folder (e.g., C:\Backups\) on Windows Server 2025 or Windows 11.
  • Confirm there is no file-level corruption using RESTORE VERIFYONLY on each backup file in the chain.

Alternative or Verification Steps

  • After recovery completes, run DBCC CHECKDB('YourDB') WITH NO_INFOMSGS, ALL_ERRORMSGS; to confirm the page error is resolved and no further corruption exists.
  • If the correct differential/log sequence is unavailable or corrupted, restore the entire database from the last known good full backup instead of attempting a page-level restore.