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Set Up Lossless Scaling for Borderless PC Games on Windows 11

Configure Lossless Scaling to upscale a compatible borderless game and test its visual quality.

by@guidox updated:10/29/26 time:15 min level:Intermediate works on:Windows 11 25H2 x64, Lossless Scaling Steam release tools:Lossless Scaling, Steam
⚠ Safety notice

Avoid using unsupported third-party scaling or injection utilities in competitive games with restrictive anti-cheat policies.

TL;DR

Install **Lossless Scaling**, choose a supported scaling method, and test it with a borderless game.

Before you start

Requirements

  • Windows 11 25H2 x64
  • Compatible GPU
  • Lossless Scaling purchased through https://store.steampowered.com/app/993090/Lossless_Scaling/
  • A game supporting windowed or borderless presentation
Step by step

Instructions

01

Install Lossless Scaling

Open the application's Steam store page, purchase it if necessary, and install it from your Steam library.

02

Launch the application

Open **Lossless Scaling** and review its scaling and frame generation controls. Keep advanced options disabled initially.

03

Configure the game

Open the target game's display settings and select a compatible windowed or borderless mode. Choose an appropriate starting render resolution.

04

Choose scaling settings

Return to **Lossless Scaling** and select a suitable scaling type. Leave additional performance features at their defaults for the first test.

05

Start scaling

Use the application's **Scale** action and return to the game during the activation countdown.

06

Compare image quality

Inspect sharpness, mouse behavior, and responsiveness. Disable scaling briefly to compare the result with the original presentation.

tipScaling and frame generation are different features. Test them separately.
Troubleshooting

Common issues

Scaling does not activate.

Confirm that the game uses a compatible display mode and that the application is running.

The game feels less responsive.

Disable frame generation, review frame-rate limits, and test a simpler scaling method.

FAQ

Frequently asked

Does Lossless Scaling increase actual game rendering FPS?

Upscaling changes image presentation. Frame generation may increase displayed frames without increasing underlying game simulation speed.

Does it work with every game?

No. Compatibility depends on display mode, rendering behavior, and other software.

How to undo this

Disable scaling inside **Lossless Scaling**, restore the game's original resolution and display mode, and uninstall the application through Steam if desired.

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