Install security updates
Keep supported Windows versions, browsers, and internet-facing applications current. Restart when updates require it.
Remove unsupported software
Applications that no longer receive fixes create avoidable risk. Replace or uninstall them after preserving needed data.
Review account privileges
Use a standard account for routine work when practical and approve administrator prompts only for actions you initiated.
Strengthen sign-in security
Use unique passwords, multifactor authentication, and a reputable password manager for important accounts.
Keep protections enabled
Maintain the firewall, real-time malware protection, and browser security features unless a qualified administrator has a documented alternative.
These steps provide general educational guidance and cannot guarantee a repair. Software cannot physically repair failed storage, damaged memory, overheating components, broken connectors, or liquid damage.