--- title: "Fix OptiScaler overlay not showing | OptiScaler" description: "Common causes include an incorrect install folder, the wrong proxy DLL, input-hook conflicts, overlays, or a game-specific compatibility issue." canonical: https://optiscaler.ink/how-to/how-to-fix-overlay-not-showing updated: 2026-10-18 --- # How to fix the OptiScaler overlay not showing Common causes include an incorrect install folder, the wrong proxy DLL, input-hook conflicts, overlays, or a game-specific compatibility issue. ## Facts (2026-10-18) - **Version:** OptiScaler 0.9.4 (reference build, July 2026) - **APIs:** DirectX 11, DirectX 12, Vulkan - **Upscalers:** DLSS, FSR and XeSS inputs/outputs where compatible - **Frame generation:** Experimental OptiFG (DirectX 12) - **Overlay:** Insert key - **Install:** ZIP extracted next to the main game executable - **Platform:** Windows; Linux via Proton/Wine varies - **Site:** Independent guide — not the official project site ## In short Common causes include an incorrect install folder, the wrong proxy DLL, input-hook conflicts, overlays, or a game-specific compatibility issue. ## Steps 1. Confirm the files sit next to the main game executable, not a launcher stub. 2. Confirm the proxy DLL name matches the setup for that game and API. 3. Close other overlays and input hooks, then retry Insert. 4. Remove the files, verify the game runs stock, and re-install the minimum setup. ## Facts that do not change Reference build is OptiScaler 0.9.4. Install is a ZIP next to the main game executable; the overlay opens with Insert. Avoid online or anti-cheat protected games, and test offline first. ## Overlay and usage: related searches - [OptiScaler Overlay](https://optiscaler.ink/keywords/optiscaler-overlay) - [OptiScaler Overlay Key](https://optiscaler.ink/keywords/optiscaler-overlay-key) - [What Key Opens OptiScaler Overlay?](https://optiscaler.ink/keywords/what-key-opens-optiscaler-overlay) - [OptiScaler Insert Key](https://optiscaler.ink/keywords/optiscaler-insert-key) - [OptiScaler Insert Key Not Working](https://optiscaler.ink/keywords/optiscaler-insert-key-not-working) - [How to Open OptiScaler Overlay](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay) - [How to Open OptiScaler Overlay with Insert](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert) - [OptiScaler Overlay Shortcut](https://optiscaler.ink/keywords/optiscaler-overlay-shortcut) - [OptiScaler Overlay Keyboard Layout](https://optiscaler.ink/keywords/optiscaler-overlay-keyboard-layout) - [OptiScaler Overlay Not Showing](https://optiscaler.ink/keywords/optiscaler-overlay-not-showing) - [OptiScaler Overlay Missing](https://optiscaler.ink/keywords/optiscaler-overlay-missing) - [OptiScaler Overlay Missing after Install](https://optiscaler.ink/keywords/optiscaler-overlay-missing-after-install) - [OptiScaler Overlay Not Opening](https://optiscaler.ink/keywords/optiscaler-overlay-not-opening) - [OptiScaler Overlay Does Not Appear](https://optiscaler.ink/keywords/optiscaler-overlay-does-not-appear) - [Why Does OptiScaler Overlay Not Appear?](https://optiscaler.ink/keywords/why-does-optiscaler-overlay-not-appear) - [Press Insert OptiScaler No Overlay](https://optiscaler.ink/keywords/press-insert-optiscaler-no-overlay) - [OptiScaler Overlay Conflict with Other Overlays](https://optiscaler.ink/keywords/optiscaler-overlay-conflict-with-other-overlays) - [OptiScaler Input Hook Conflict](https://optiscaler.ink/keywords/optiscaler-input-hook-conflict) - [OptiScaler How to Use](https://optiscaler.ink/keywords/optiscaler-how-to-use) - [How to Use OptiScaler](https://optiscaler.ink/keywords/how-to-use-optiscaler) - [OptiScaler Input vs Output](https://optiscaler.ink/keywords/optiscaler-input-vs-output) - [OptiScaler Backend Indicator](https://optiscaler.ink/keywords/optiscaler-backend-indicator) - [OptiScaler Save Settings](https://optiscaler.ink/keywords/optiscaler-save-settings) - [How to Open OptiScaler Overlay with Insert 0.9.4](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert-0-9-4) - [How to Open OptiScaler Overlay with Insert Linux](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert-linux) - [How to Open OptiScaler Overlay 0.9.4](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-0-9-4) - [How to Open OptiScaler Overlay with Insert 2026](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert-2026) - [How to Open OptiScaler Overlay with Insert Reddit](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert-reddit) - [How to Open OptiScaler Overlay with Insert Tutorial](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert-tutorial) - [How to Open OptiScaler Overlay Linux](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-linux) - [How to Open OptiScaler Overlay with Insert Fix](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert-fix) - [How to Open OptiScaler Overlay with Insert Guide](https://optiscaler.ink/keywords/how-to-open-optiscaler-overlay-with-insert-guide) ## FAQ ### What is OptiScaler? OptiScaler is a community tool that can intercept supported in-game upscaler calls and redirect them to another supported upscaling backend, with additional tuning options. ### How does OptiScaler work in a game? The game exposes an input upscaler, OptiScaler sits between the game and the selected output backend, and the chosen output handles the final upscaling path where compatibility allows. ### Does OptiScaler support DirectX 11? Yes, DirectX 11 is supported, although the available output methods and behavior can differ from DirectX 12. ### Does OptiScaler support DirectX 12? Yes. DirectX 12 has broad support and is also the API used by experimental OptiFG functionality. ## Related - [OptiScaler how-to: install, overlay, FSR4 and fixes](https://optiscaler.ink/how-to) - [OptiScaler FAQ: the official 20 questions, answered](https://optiscaler.ink/faq) - [How to install OptiScaler](https://optiscaler.ink/how-to/how-to-install-optiscaler) - [How to open the OptiScaler overlay with Insert](https://optiscaler.ink/how-to/how-to-open-the-overlay) - [How to fix a game crash after installing OptiScaler](https://optiscaler.ink/how-to/how-to-fix-game-crash-after-install) ## Download ZIP next to the game executable: [Download OptiScaler](https://optiscaler.ink/download) Markdown mirror: https://optiscaler.ink/how-to/how-to-fix-overlay-not-showing.md