Articles tagged "IT緊急対応"

What to do first when a file vanishes from a shared folder or cloud drive: what to stop immediately, recovery options and deadlines by storage type (Windows shares, NAS, Microsoft 365, Google Drive), actions that destroy your chances, and who to call.

A triage checklist for office PCs that won't start and networks that won't connect: 'one person or everyone?' narrows half the causes. Correct router restart order, symptom-based PC steps, stopgap operations, and repair-vs-replace judgment.

Triage for email that won't send or arrive: narrowing causes by symptom, dealing with spam-flagging (SPF/DKIM in plain terms), the domain-expiry blind spot, and a table of exactly who to contact for each cause.

Site won't load, looks wrong, or triggers a browser warning — here's how to tell them apart and what to do first for each symptom.

Files won't open and a ransom note appears — here are the first three things to do, what never to do, and who to call, explained step by step.

Emergency triage for sudden server or business-system outages: narrowing causes with 'one person or everyone?', safe restart steps and when not to restart, who to contact with or without a maintenance contract, and post-recovery actions.

What to do — and not do — in the first 30 minutes of a company IT emergency: three principles of initial response, a symptom-based triage table, and how to route contacts (IPA, police, vendors). A guide non-IT staff can actually use.