Hey! I can help you troubleshoot why the Asus computer setup screen text is too small in a safe way (no risky tweaks, no “mystery tools”).

First, I want to make sure we’re talking about the right “setup screen,” because the cause is totally different depending on where you see the tiny text:
1) Windows setup (first-time setup / installer / blue screens with steps): this is still Windows, so accessibility options like Magnifier may work.
2) BIOS/UEFI setup (black/gray firmware menu before Windows loads): this often runs at a fixed, basic resolution and can look extremely small on a 4K display or ultrawide monitor.
3) Setup screen inside an app (e.g., driver installer): this is usually a High DPI scaling issue in Windows for that specific program.

Quick questions to pinpoint it:
• Which screen is it — Windows setup, BIOS/UEFI, or a program installer?
• Is this on the laptop’s built-in display, or an external monitor/TV?
• Did it start after a change (new monitor, docking station, Windows update, reset/reinstall)?

That makes sense — Windows setup on a 4K monitor can default to a scale that’s technically “correct” but practically too small at normal viewing distance.

The good news: you’re thinking about this the right way. During setup, it’s best to use temporary readability tools rather than changing a bunch of settings you can’t easily verify yet.

A couple safe diagnostic checks (no permanent changes) before we try anything:
1) Is the monitor connected via HDMI or DisplayPort/USB-C adapter?
2) Is the screen “too small” evenly everywhere, or only in certain boxes (like the Wi-Fi list or Microsoft account sign-in)?
3) Do you see any zoom controls or accessibility icon on the setup screen, or is it plain text with no options?

Also: does your monitor have an on-screen menu option like “Scaling,” “Aspect,” “Display Mode,” or “Sharpness”? We can use that as a non-Windows workaround if needed.

Cursor also being small strongly suggests the setup environment is using a high resolution with a low scale factor — so it’s not just “font,” it’s the whole UI sizing.

Let’s keep it safe and reversible. Two options that usually work during Windows setup without committing you to a permanent change:

Option A: Magnifier (temporary zoom)
On many Windows setup screens, you can turn on Magnifier using a keyboard shortcut. It’s a quick way to read tiny setup text and then turn it off again later.

Option B: Monitor scaling (outside Windows)
Some 4K monitors have a “Scaling” or “Display Mode” that makes content larger (or changes sharpness/overscan). This doesn’t change Windows settings — it just changes how the monitor renders the image.

Before you try either: do you have access to the keyboard? And are you using any adapter/dock, or is it a direct HDMI cable from the Asus to the monitor?

Totally fair concern. Using Magnifier is generally a readability tool, not a system “tweak.” It’s designed for accessibility and is meant to be turned on/off as needed. The goal here is simply to make the text readable while you finish the setup screens.

To keep risk low, here’s the logic I use:
• If a shortcut only affects viewing (zoom), it’s reversible.
• If something changes resolution/scaling permanently, we wait until Windows is fully set up so you can confirm the result and undo it easily.

One more quick diagnostic question: do you ever see the screen flash or re-detect (like the monitor goes black for a second), or is it stable and just small? If it’s stable, this is almost always a UI scaling/readability situation, not a failing GPU or cable.

That’s a really useful detail — it strongly points to the 4K monitor + low-scale UI combination, and it explains why the UEFI/BIOS setup looks tiny as well. BIOS/UEFI menus often don’t scale nicely on high-resolution displays because the firmware uses simple display modes before Windows loads.

Safe ways to think about it:
• BIOS/UEFI: usually not “broken,” just not scaled. The best safe checks are cable/port changes or monitor scaling options, because BIOS itself may not offer comfortable font sizing on some setups.
• Windows setup: you can rely on accessibility tools to finish setup, and then adjust text/scale properly once you’re at the desktop.

Quick check to reduce pain right now without changing firmware settings:
• Does your monitor menu have anything like “Display Mode: 1:1 / Aspect / Full / Overscan” or “Scaling”? If yes, you can try a mode that makes the image appear larger (even if it’s slightly less crisp) while you do setup.

And just to avoid a trap: are you using the monitor at a normal distance, or is it far away (like across a room)? Distance can make “tiny text” feel 10x worse in setup screens.

Yes — once you’re in the Windows desktop, you can adjust Scale and Text size in a controlled way. That’s the cleanest, safest place to do it because you can immediately judge readability and revert if anything looks odd.

For games specifically: Windows scaling generally affects the desktop/UI, while many games have their own resolution and UI scale settings. If something looks blurry, that’s a sign we’d want to check whether Windows is using the monitor’s native resolution and the recommended scale (rather than forcing a weird custom scale).

For now, since you’re still in setup and the BIOS text is also tiny, I’d treat this as two parallel issues:
1) Finish setup comfortably using temporary readability options (like Magnifier if needed).
2) After setup, confirm Windows scale/text size and resolution match the 4K monitor (that’s the point where changes are easy to undo).

If you want, tell me whether the Asus is outputting 3840×2160 to the monitor once you reach the desktop — that one detail usually explains whether it’s “normal 4K scaling behavior” or a mismatch.