Overview
This MacBook Air arrived with poor website loading and unreliable email behaviour. The hardware was serviceable, but the operating system was far out of date.
Symptoms
- Modern websites loading poorly or not rendering correctly
- Email workflow intermittently failing
- General slow, inconsistent day-to-day performance
Diagnosis
Inspection confirmed the machine was still on macOS High Sierra. The age of the OS was the key driver of compatibility and security issues.
Fix
We prepared the device and upgraded it to macOS Monterey 12.7, the latest supported version for that model. Post-upgrade checks covered browsing, mail, and core system stability.
Result
The MacBook Air became noticeably more responsive and reliable. Website compatibility and email functionality were restored.
Prevention / Tips
Keep macOS on the newest version your model supports to avoid browser, security, and app compatibility problems.