Step1: Check Crypto wall.
• Open the windows start menu.
• Type ‘FILE EXPLORER’.
• Search and open the QuickBooks folder.
• Look for files containing decrypt and instructions.
Step2: Restoring Back-up file.
Restore the back-up of your company file, then restore this back-up. If you don’t see the Error-6150 after the restore back-up, then this error is fixed and you can