Restoring backups is routine until QuickBooks Error 6123 interrupts the process. Here’s how to make sure your restores are safe and prevent the error from coming back:

Step 1: Localize your backups
Always store your QBB backups on your system drive (for example, C:\QBBackups); never use USB sticks or network folders.

Step 2: Run “Verify & Rebuild Data” before backup
In QuickBooks, go to File ? Utilities ? Verify Data. If it finds issues, choose Rebuild Data. A clean file lowers the risk during restoration.

Step 3: Rename old network files after restore
After a successful restore, find your .ND and .TLG files (which have the same name as your .QBW file). Rename them by adding “.old.” These may hold old configuration data that can cause conflicts.

Step 4: Periodic Test Restores
Each month, simulate a restore on a test folder to check backup integrity and ensure no errors come up.

Step 5: Automate backups with QB's internal scheduling
QuickBooks Advanced users can set up automatic backups after each closing. You can enable this under Edit ? Preferences ? Backup.

Step 6: Document restore history
Keep a log that includes the backup date and time, file size, and restore status. Note if any errors (like 6123) occurred.

Step 7: Share detailed info when stuck
If Error 6123 still shows up, post here with:
• Original backup path,
• List of renamed files in the restore folder,
• Backup timestamp and size,
• QuickBooks version and Windows OS.

Read More:https://qbookassist.com/quickbooks-error-6123/