How to Apply a Stretched Resolution in Fortnite Using AlphaRes

Last updated: May 2026 · tested with AlphaRes v1.1.0 on Fortnite Chapter 7

I’ve been running Fortnite at 1600×1080 for about eight months now. The first three months were misery. I’d set my stretched res in the in-game Settings menu, play a session, and the next morning Epic would push a patch and my resolution would be back to 1920×1080. I kept resetting it. Then I’d forget to redo my graphics tweaks. By week four I was just losing scrim warmups to setting reconfiguration. That’s when a friend in our Discord pointed me at AlphaRes, and the fix was so anticlimactic that I felt stupid for not finding it myself.

This guide walks through the exact five-step process to apply a stretched resolution in Fortnite using AlphaRes v1.1.0, including the read-only checkbox most people skip, what numbers to actually type, and how to confirm it worked before you queue into ranked. I tested this on a Ryzen 7 / RTX 3070 / 240Hz panel with Fortnite Chapter 7 in May 2026. If you’ve already downloaded AlphaRes and just need the workflow, jump straight to the steps below.

What You Need Before You Start

Three things. Skip any of them and the rest of the guide doesn’t help.

• AlphaRes v1.1.0. Free, 533 KB, x64 only. Grab it from our download page if you haven’t already. Don’t trust clones at alphares.dev or alphares.info. They sometimes serve repackaged builds.
• Fortnite already launched once on this PC. AlphaRes edits a file at %LocalAppData%\FortniteGame\Saved\Config\WindowsClient\GameUserSettings.ini. If you’ve never opened Fortnite, the file doesn’t exist and AlphaRes has nothing to write. Boot Fortnite, sit on the lobby for ten seconds, close it.
• Your GPU’s display scaling configured. AlphaRes writes the resolution. Your GPU has to actually scale that resolution to your panel. NVIDIA users: Control Panel → Adjust desktop size and position → Scaling = Full-screen, Override the scaling mode set by games and programs ticked. AMD users: Adrenalin → Display → GPU Scaling on, scaling mode Full Panel. I’ve seen people skip this step and then complain AlphaRes “doesn’t work.” It does. Your GPU just isn’t stretching the output.

Got those? Good.

Five steps from here.

How to Apply a Stretched Resolution in Fortnite Using AlphaRes

1. Right-click alphares_x64.exe → Run as administrator. AlphaRes needs admin rights to flip Windows’ read-only attribute on the config file. Without admin, the resolution write succeeds but the lock step silently fails, and Fortnite resets your settings within 24 hours.
2. Type your width into the Width field. 1600 is my pick. 1440 if you want maximum stretch. 1720 if you want the smoother middle ground that pros like Clix run.
3. Type your height. Almost always 1080 unless you’re on a 1440p monitor (then use 1440). The height defines the stretch ratio; lower it and player models get taller.
4. Tick the Read-only checkbox. This is the step everyone skips. Without it, your resolution lasts maybe a week before Epic’s update process overwrites the file. With it, the file is protected and your settings survive every patch including chapter rollovers.
5. Click Apply. The window doesn’t pop a confirmation. The file gets written, the read-only attribute gets set, and that’s it. Close AlphaRes and launch Fortnite.

That’s the workflow. I’m not exaggerating when I say it’s that simple. If you got an admin elevation prompt and clicked Yes, your read-only attribute is set. If you didn’t get the prompt, AlphaRes ran without elevation and the lock half-worked. Close it, right-click again, and pick Run as administrator.

What Numbers Should You Actually Type?

This trips people up more than the technical part. Five resolutions account for ~90% of competitive Fortnite stretched setups. Pick based on your monitor refresh rate, GPU headroom, and how much you care about FOV vs aiming surface.

I started at 1440×1080 because Reddit told me to. I moved to 1600 after a week because the player models felt comically wide. I think 1600’s what I’d hand a friend without thinking. If you’re on a 1440p monitor and the stretch looks weird, drop to 1750×1080. If you’re on a low-end card and you need the FPS, push down to 1440×1080 and ignore the visuals.

Why You Need the Read-Only Checkbox

The Read-only box is the entire point of using AlphaRes instead of just editing the .ini by hand. Here’s what happens under the hood. AlphaRes writes your resolution values into GameUserSettings.ini. That alone gets you a stretched resolution. But every Fortnite patch (sometimes weekly) re-runs Epic’s settings reconciliation logic, which detects “non-standard” resolution values and rewrites them to the closest preset. With the read-only attribute set, that rewrite fails because Windows blocks the write, and your settings stay.

You can verify the lock manually. Navigate to %LocalAppData%\FortniteGame\Saved\Config\WindowsClient\, right-click GameUserSettings.ini, click Properties. The Read-only checkbox at the bottom should be ticked. If it’s not, AlphaRes either ran without admin or didn’t run the lock step. Re-run as administrator and re-apply.

There’s a trade-off here. While Read-only is set, you can’t change graphics settings inside Fortnite’s UI either. The game will accept your changes and pop “Settings applied” but they revert on next launch. That’s by design. To change anything, uncheck the box in AlphaRes first, change settings in Fortnite, then re-tick and re-apply. Most people set it once and forget.

I forget every time.

How Do You Verify the Resolution Stuck?

Two ways. The fast way is launching Fortnite and checking the Settings → Video → Display Resolution. It should match what you typed. The thorough way is opening GameUserSettings.ini in Notepad and reading the actual values that AlphaRes wrote.

To check by Notepad: I hit Win + R, type %LocalAppData%\FortniteGame\Saved\Config\WindowsClient\, and press Enter. Right-click GameUserSettings.ini, Open with → Notepad. I use Ctrl+F and search for ResolutionSizeX. The four lines AlphaRes touches are ResolutionSizeX, ResolutionSizeY, LastUserConfirmedResolutionSizeX, and LastUserConfirmedResolutionSizeY. All four should equal your chosen width or height.

If they’re at 1920 and 1080 instead of your chosen values, AlphaRes didn’t write. The most common cause I’ve debugged is Fortnite being open when you clicked Apply. Close Fortnite completely (check Task Manager for FortniteClient-Win64-Shipping.exe and EpicGamesLauncher.exe), then re-run AlphaRes.

What to Do If Your Resolution Still Resets

I see this question in r/FortniteCompetitive every chapter rollover. The pattern is the same: someone sets stretched res via AlphaRes, plays for a few days, opens Fortnite after a patch, and the resolution is back to 1920×1080. There are three causes in order of how often I’ve debugged each.

• You forgot the Read-only checkbox. 80% of the cases I see. AlphaRes wrote the resolution but didn’t lock the file, so Epic’s next patch reconciled the values back to 1920×1080. Re-run AlphaRes, tick the box this time, click Apply. Done.
• You ran AlphaRes without admin rights. Windows silently denies the read-only attribute set when the process can’t get write access to the user’s AppData folder. Right-click → Run as administrator, redo.
• Antivirus reverted the lock. Some AVs (Norton in particular) treat sudden read-only flips on AppData files as suspicious and undo them. Whitelist alphares_x64.exe in your AV’s exclusions, or temporarily disable real-time protection while you Apply, then re-enable.

If none of those apply and your resolution still resets, the longer diagnostic is in AlphaRes settings not saving. The other related troubleshooting guide for “Fortnite specifically resets my res” is Fortnite resets my resolution after update.

How to Switch Resolutions Later

You set 1600×1080, played for two weeks, and want to try 1440×1080. Don’t open Fortnite and try changing it from the Settings menu. The Read-only attribute will block the write and you’ll just confuse yourself. Do this instead:

1. Close Fortnite completely.
2. Run AlphaRes as administrator.
3. Type the new width and height.
4. Tick Read-only (it stays ticked between sessions, but verify).
5. Click Apply.
6. Launch Fortnite. New resolution is live.

v1.1.0 added a Revert button that restores the original 1920×1080 values from the backup AlphaRes took on first run. Useful if you want to go fully back to native without retyping.

FAQ

Do I need to keep AlphaRes running while I play Fortnite?

No. AlphaRes only runs when you click Apply. After that, it edits the file, sets the read-only attribute, and you can close it. The settings persist because Windows enforces read-only at the filesystem level. There’s no AlphaRes process running during Fortnite, no overlay, no hook into the game.

What’s the safest stretched resolution to start with?

1600×1080 on a 1080p panel. It stretches enough to feel different but doesn’t make player models look distorted. Once you’re comfortable with the workflow, drop to 1440×1080 if you want more stretch or stay at 1600 if it feels right. Most pros sit between 1440 and 1750.

Can I use AlphaRes if I’m on a 1440p or 4K monitor?

Yes. On a 1440p panel, write 1750×1440 or 1920×1440 instead of x1080 values. On 4K, scale up: 2880×2160 or 3072×2160. Make sure your GPU’s scaling mode is set to fill the panel. The math is the same: pick a width less than your panel’s native width, keep height equal to native height.

Why does AlphaRes need admin rights?

Only one reason: setting the Windows read-only attribute on a file in your AppData folder. Without admin elevation, Windows blocks the attribute change. The actual file write succeeds without admin, but the lock half won’t, which defeats the point of using AlphaRes. Always run as administrator.

Will Fortnite refuse to launch if my resolution is “weird”?

No. Fortnite accepts any resolution your monitor can display. The “weird” feeling is your GPU’s job: if scaling isn’t configured, you’ll see black bars or letterboxing. Fortnite itself doesn’t care. I’ve tested 1280×1024, 1440×1080, 1600×1080, 1720×1080, 1750×1080, and 1920×1080 on the same rig with no Fortnite-side issues.

Does the FPS field in AlphaRes do anything?

Yes, it writes FrameRateLimit in the same .ini file. Type 240 for a 240Hz monitor, 360 for a 360Hz, and so on. Skip this field if you’re using an external limiter like RTSS or NVIDIA Reflex’s framerate cap, because the in-game cap will conflict with whatever the external tool is enforcing.

What window mode should I pick?

Plain Fullscreen. It gives the lowest input latency and the cleanest scaling. Windowed Fullscreen is convenient for alt-tabbing but adds 1 to 3 frames of compositor lag depending on your Windows version and your DWM settings. Plain Windowed is rarely useful for a competitive setup.

Will AlphaRes change my graphics quality settings?

No. AlphaRes only writes the four resolution keys, the FPS cap key, and the window mode key. Graphics quality (Shadows, Anti-Aliasing, View Distance, Texture quality) is left alone. If you want to lock those too, the related tool is Forknife (same author), which AlphaRes’s older sibling.

What happens if I uninstall AlphaRes after applying?

Your stretched resolution stays. The read-only attribute is a Windows filesystem flag, not something AlphaRes maintains in the background. You can delete the .exe and your stretched res persists until you (or another tool) unsets the read-only flag. Full clean uninstall walkthrough is in how to uninstall AlphaRes cleanly.

Can I lock more than just the resolution?

Not with AlphaRes alone, no. AlphaRes writes resolution + FPS cap + window mode and locks the file. If you want graphics quality, anti-aliasing, view distance, and texture settings to also survive Fortnite patches, you need Forknife (which writes those keys too) or you can manually edit the .ini and re-flip the read-only attribute yourself.

Why do my settings show as locked when I open Fortnite’s Settings menu?

That’s the read-only attribute working correctly. Fortnite’s Settings UI lets you click around and click Apply, but the actual config file write fails silently because the file is read-only. To make changes, uncheck Read-only in AlphaRes first, change settings in Fortnite, save, then re-apply AlphaRes with Read-only ticked.

Does AlphaRes work in Fortnite Creative or Reload modes?

Yes. AlphaRes writes to a global Fortnite config file that all modes share: Battle Royale, Zero Build, Reload, Creative, Team Rumble, even Lego Fortnite. Whatever resolution you lock in applies to every mode equally. There’s no per-mode resolution split.

Where to Go Next

You’ve got a stretched resolution locked in. The next questions most people hit are which exact resolution to settle on long-term, and whether the GPU panel scaling is doing the right thing. Quick links:

• Best Stretched Resolutions for Fortnite Chapter 7,tested on a real Chapter 7 build, ranked by FPS gain and visibility tradeoff.
• How to Lock Fortnite Resolution So Updates Can’t Reset It,the deep-dive on the read-only mechanism if you want to understand exactly what’s happening.
• AlphaRes Complete Guide,the pillar with installation, safety, troubleshooting, and links to every cluster guide.
• AlphaRes Settings Not Saving,full diagnostic if your apply step keeps failing.

External reference: the ProSettings.net stretched resolution guide covers the GPU-panel scaling side of the setup if you want a second opinion on the NVIDIA / AMD configuration.