Should I list every application I have installed?

List the ones you supported often enough to fix without a script in front of you. A one-time install is a weak skills line.

What if I worked a help desk and want a systems role?

Show the desk honestly and add only the systems tasks you already did. Do not retitle the desk as engineering.

IT support specialist resume tips

An IT support resume should say which desk you sat on and which problems you could finish. Password and account access, a broken mail client, imaging a laptop, and a site-down call are different queues. Name the systems you could change yourself and the ones you had to hand to a specialist.

Cover letter for an IT support specialist

What to put first

Say who you supported: an office, a clinic, a school, a warehouse floor, or remote staff. Then the channel: walk-up, phone, chat, or a ticket queue. Put the problems that match the posting first.

What you could close

List the fixes you were trusted to finish: account unlocks, a mail profile, a printer, a VPN, a replaced machine. If you only logged and escalated, say that. Escalation with a clear note is a skill when it is the job.

The directory and the devices

Name the account directory, the device manager, or the ticket tool if you used them. Do not add a cloud suite because the posting named it. A different tool, honestly named, is fine.

The boundary with engineering

A desk that images laptops is not the team that runs the production cluster. Do not borrow that scope. If you wrote a small script to speed a reset, you can say so without calling yourself the platform owner.

An example line

Adapt this only where it is true for you. It is a shape for a bullet, not a claim that a particular person did this work.

Closed walk-up tickets for an office: unlocked accounts in the company directory, rebuilt mail profiles, and imaged replacement laptops from the standard build.

What to leave off

Leave off platforms you have not administered, a security incident you only heard about, and slang that hides the task. Leave off "people person" in place of the queue you actually ran.

Questions

Should I list every application I have installed?: List the ones you supported often enough to fix without a script in front of you. A one-time install is a weak skills line.
What if I worked a help desk and want a systems role?: Show the desk honestly and add only the systems tasks you already did. Do not retitle the desk as engineering.