Apple Support 247 is an independent publication — not affiliated with Apple Inc.
Mac troubleshooting writer
At Apple Support 247 since January 15, 2026
Ruben Alvarez writes our Mac and macOS troubleshooting coverage. He specialises in the messy middle of a problem: an error number with no explanation, a copy that stops at 80 percent, a Mac that powers on but never reaches the desktop.
His guides deliberately explain what a symptom can indicate rather than promising one definitive cause, because the same message often has several plausible explanations depending on hardware generation and macOS version.
Ruben is a consumer technology writer. He is not an Apple employee, technician or certified repair professional.
Step-by-step troubleshooting when a MacBook Pro shows no sign of life or won't start. Covers power, display, charger and startup checks, with clear guidance on when to seek hands-on help.
Mac Error Code 0 typically appears when copying a large file to an external drive. Learn why it happens, which file-system limitation causes it, and what to check.
Mac Error Code 1407 appears in Finder during file operations. Learn what situations produce this code, how to check file and volume status, and what to try first.
Error Code 8058 appears in Finder during file moves and copies. Learn what causes this code, how to check for locked or in-use files, and what to try to resolve it.
A step-by-step guide for a MacBook Air that won't start or shows a black screen. Covers power checks, display faults, brightness settings, and recovery options.
Error Code 43 appears in Finder when a file operation cannot complete. Learn what causes this Mac error, how to identify the problem file or volume, and what to try first.
Error Code 50 appears in Finder during file copies, often to external drives. Learn what causes this storage error, how to test the destination drive, and how to protect your data.
