Mac Running Slowly or Showing Errors? Start Here

A slow Mac is not always a broken Mac

Use Activity Monitor to see which applications are busy and check available storage. On current macOS versions, review System Settings > General > Login Items & Extensions for optional items you recognise. Do not remove security, backup or employer-managed tools without understanding their role.

If the slowdown happens only online, compare a local document with a website. If it affects one application, check that application’s requirements and recent changes. This helps avoid treating a network problem as a hardware problem.

Back up before a major change

Check that an appropriate backup exists before a large update, reinstall or storage cleanup. Do not delete unfamiliar Library folders because a search result says they are “cache”. Some applications store important local data outside Documents, and cloud sync is not a complete recovery plan.

Login and startup problems are different

A forgotten Mac login password needs Apple’s supported recovery options for the legitimate owner. A work-managed Mac may need the organisation’s administrator. A normal screen-sharing session usually cannot start if you cannot sign in. Describe the screen from another device before purchasing remote support.

Prepare a useful support enquiry

Include the Mac model or approximate age, macOS version if available, which app fails and the exact message. Explain what you already tried and whether a backup exists. We can investigate suitable software and configuration issues remotely, but we cannot replace parts, bypass encryption or guarantee recovery of missing data.