How can I prepare for a junior sysadmin role in two weeks?

They know you’re coming in as a junior, so they shouldn’t expect you to know everything on day one. In many entry-level roles, you’ll learn the company’s environment through tickets, documentation, account issues, endpoint support, and routine administration. Focus less on cramming and more on being dependable: take detailed notes, remember what you’re taught, research issues before escalating them, and ask for help when you’re genuinely stuck.

Your attitude and communication will matter as much as your technical knowledge. Be polite and patient with users, especially when they make mistakes or cannot describe the problem clearly. Explain technical issues in plain language, don’t make promises you can’t keep, and try to identify the underlying business need instead of blindly completing the first request. Also, never apply a change you don’t understand just because an online source or AI tool suggested it—verify the advice and follow your organization’s procedures.

A practical two-week plan would be: spend the first few days reviewing networking and Windows fundamentals, then practice basic PowerShell and common directory-service tasks in a lab. After that, read about the employer’s products if you know them, and practice documenting hypothetical troubleshooting steps. Don’t split your attention across too many subjects. Learn one concept at a time and keep a short reference guide for commands, symptoms, and solutions.

First, ask your new manager what systems and tasks you’ll actually be working with. The technology stack can vary hugely between companies, and targeted preparation will be much more useful than studying random topics. At a minimum, review networking basics, DNS, DHCP, Active Directory, Microsoft 365 or Exchange Online, virtualization, operating-system troubleshooting, and basic PowerShell. Get familiar with ticketing systems, documentation, and safe troubleshooting practices too.

Congratulations! A good junior should have access to a senior person or team lead for guidance. If they immediately give you unrestricted access and expect you to figure everything out alone, treat that as a warning sign. Work carefully, handle one task at a time, document what you change, and be cautious with screenshots or logs that might contain confidential information.