Yukfues Optimization Utility v6.40.0

1. "Game Fix" is now called "Gaming Presets" — same feature, clearer name. It's where you pick your game (or a ready-made preset) and apply the best tweak set for it in one click.
2. Build your own presets — hand-pick the exact tweaks you want, name it, and save it. Apply your custom setup any time, and rename or delete it whenever you like.
3. New "Share My Score" card — after a benchmark you can create a clean, branded image of your before → after score plus your CPU and GPU. It's saved to your PC and copied to your clipboard, ready to paste straight into Discord or socials.
4. The benchmark is more accurate and easier to read — a new before → after view shows at a glance exactly how much YUKFUE improved your system.
5. The app is now sized correctly on every display, and there's a new UI Size setting so you can scale it to your taste.
6. A refreshed premium look — a proper dark title bar, cleaner and easier navigation, and smoother motion and polish throughout.

SHA256: 62685B59E453D3A77B57C2C4992249524E9EA9D04730828E6204573B9D965AF0
Download: https://github.com/yukfue/yukfue-releases/releases/download/v6.40.0/YUKFUE_Setup_v6.40.0_public.exe

YUKFUE v6.39.0

YUKFUE v6.39.0

🎮 New: Game Fix Tab (free for everyone)

Pick your game and YUKFUE handles the rest:

• Apply the perfect tweak set in one click — Safe (skips anything that could interfere) or Full (maximum optimization, still skips confirmed breakers)
• Conflict detection — see any tweak that could interfere with your game, and switch it back in one click
• Tournament readiness check — verifies Secure Boot, TPM, and IOMMU for Fortnite, Valorant, League, Call of Duty, Battlefield, and FACEIT
• Covers 20 games including Xbox / Game Pass titles, Steam games, and more

🔄 New: One-Tap Package Restore

Removed a Windows or Xbox app and need it back for a game? Get it back in one tap right from the Game Fix page — with step-by-step guidance for the trickier ones (optional features, Edge).

🛡️ New: First-Launch Safety

YUKFUE now walks you through creating a Windows restore point before any system changes — the deepest safety net, on top of the built-in Restore Center.

🔧 Fixed

• BIOS Advisor now shows full recommendations — anti-cheat caveats (like "enable for Valorant on Windows 11") are no longer cut off, and conditional settings are highlighted so competitive players notice them
• Display scaling — cleaner, more consistent layout across different monitors, resolutions, and DPI settings

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SHA256: 0F68B0531CE4E870E50BC41E75E140F033F326748EB3008FFE7167AC67CE9D97

YUKFUE v6.38.23

1. Fixed: if you hadn't opened YUKFUE in a day or two, it could start in free mode and ask for your license key — it now reconnects in the background and restores your activation automatically, with no key entry needed.

SHA256: 33A3AAE6190A6B26DDDF46201A76273592B98E632508CCE4E59EBB5A939FC41A

YUKFUE v6.38.21

1. Activation now stays valid seamlessly — fixed a brief "not activated" flash on startup and improved offline reliability after your license refreshes in the background.
2. The app no longer asks you to re-enter your license key after a temporary error (like a momentary system read glitch or disk hiccup) — your activation is kept and restored automatically on the next launch.

SHA256: F9169036C4F76696348BD15944BDCE78FCC58A6EC04BA382E2679D1D7277C082
Download: https://github.com/yukfue/yukfue-releases/releases/download/v6.38.21/YUKFUE_Setup_v6.38.21_public.exe

YUKFUE v6.38.19

1. Game Prep is now called "Lock In" — the button turns green with a checkmark the moment you click it so you know it worked, with a short cooldown so accidental double-clicks can't happen.
2. New Recommended Setup guide on the home page — clear step-by-step instructions in the right order, with one-tap buttons to jump straight to each section and clear restart reminders so you don't miss a step.
3. Your benchmark now shows your % improvement versus your baseline, so you can see your gains at a glance.
4. Added a second "Apply All Changes" button at the top of the Network section so you don't have to scroll to apply.
5. Fixed scrolling the page accidentally changing your dropdown and number settings — scrolling now moves the page, and only changes a setting when you've clicked into it first.
6. Added O&O ShutUp10++ built in — open it from the Tools menu to manage Windows privacy settings (disable Copilot, Recall, and more), with a one-click recommended privacy setup.
7. Fixed the activation window occasionally freezing with no message — it now always shows a clear result and lets you try again.
8. Fixed the app sometimes wrongly saying it was "already running" after a restart or unexpected close — it now launches cleanly.
9. Various stability and performance improvements.

SHA256: DFFD50657F059546AF296E583AEA7AC618545FC7DCA0BEDB57F846061D68E2A3

YUKFUE v6.38.5

1. Fixed a bug where a failed settings read could silently clear your loaded values and let you apply against empty settings.
2. Network settings backup now uses integrity verification — corrupted backups are detected and you are warned before any changes are made.
3. Apply All now asks before proceeding if your backup could not be saved.
4. Fixed adapter settings showing a misleading administrator error for settings that are simply not supported by your hardware.
5. Fixed a stale setting reference that was silently read on every adapter load.

SHA256: 086B270DB41CE5483B52AAAA05F6E8B7287957C7D0F5C278E0B26661E9A4B1EC
Download: https://github.com/yukfue/yukfue-releases/releases/download/v6.38.5/YUKFUE_Setup_v6.38.5_internal.exe

YUKFUE v6.38.4

v6.38.4 — 2026-06-15

Network Tuning — Complete Rebuild

The entire Network Tuning tab has been rebuilt from the ground up.

95 settings across 9 groups — RSS, Interrupt/MSI, Offload, Buffers,
Interrupt Moderation, Power Saving, Global OS, Interface, and AFD/TCP
Kernel Parameters. Previously the tab had ~8 basic adapter settings.

One Apply All button — configure everything across all groups, then
apply all changed settings in a single click. Changed settings highlight
in accent color so you always know what will change before you apply.

Gaming and Safe presets — fill all settings with gaming-optimal or
safe values in one click, then review before applying.

Save Baseline / Restore Baseline — snapshot your adapter config
before making changes. Apply All also auto-saves before every write so
you can always get back to where you started.

Restart reminder — settings that require a reboot to take effect now
show a list after Apply All so nothing is silently missed.

IPv4 / IPv6 toggle — Interface settings read and apply to the address
family you select.

Always-visible sections — all settings are visible with clear section
headers. No expanding or collapsing required.

Bug Fixes

• Fixed network settings silently not applying due to an internal write
  format mismatch — adapter settings now actually take effect
• Fixed MSI and interrupt priority settings failing with a misleading
  "Run as Administrator" error
• Fixed unusual adapter names (apostrophes, special characters) causing
  errors when reading or applying settings
• Fixed refreshing the adapter list resetting your selection
• Removed an invalid parameter that could never apply
• Fixed build version tracking so release manifests always show the
  correct version automatically

v6.37.0 — Stretch Res, 9 Themes, Free Tweaks & More

What's New in v6.37.0

This is the biggest update since launch. Everything below is live in this release.

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🖥️ Stretch Resolution (NVIDIA)

Automate custom resolutions for Fortnite and other games — no manual CRU setup required. Pick a resolution from the dropdown or enter a custom width, height, and refresh rate. YUKFUE handles the full CRU pipeline: EDID injection, display driver restart, and resolution activation. Reset to default in one click.

🎨 9 Themes + Custom Theme Builder

Choose from 9 themes: Noir, Valorant, Fortnite, Matrix, Gotham, Sakura, Chaos, Call of Duty, and a fully custom builder where you pick your own accent color.

✦ Free Tweaks Tab

43 tweaks available with no license key required. Safe, reversible, and measured. Run the built-in benchmark before and after to see your actual improvement.

📊 Benchmark Embed

The benchmark now lives directly on the Home page. Run it in seconds, save your baseline, and compare before/after any optimization session.

🔒 License Resilience

Your license now survives Windows updates and driver installs automatically. A secure hardware-based backup recovers your activation if Windows changes its internal identifiers — no more re-entering your key after an update.

⚡ Reset Monitor Resolutions Fixed

Reset Monitor Resolutions no longer freezes the app during the display driver restart. Progress is shown while it runs and completes cleanly in the background.

🛡️ Trust & Safety Improvements

• Permanent (one-way) tweaks now show a warning tooltip and ask for confirmation before applying
• Search shows a helpful message when no results are found instead of a blank page
• Getting Started links directly to the Free Tweaks tab
• Bulk revert no longer triggers accidentally on Enter
• Tweak counts on the setup screen and upgrade page now always show the correct numbers
• Four panels that were rendering without backgrounds are fixed across all themes
• Apply button is now readable in all themes including light-accent ones

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Installation Notes

• Windows 10 / 11 (64-bit)
• Run as Administrator for full functionality
• SmartScreen may show "unknown publisher" — click More info → Run anyway
• Your existing tweaks and settings are preserved on update

SHA256: ACE5382E2506B56CB06421B8A49C52A1ABEE1F40B5E7632F3DBA54318EF9BF44

v6.36.5 — Core Analyzer

Download

YUKFUE_Setup_v6.36.5_internal.exe
SHA256: 0E2ABFCA1FEBD7466FCD00318AEC737C914D4AB9675BAA2021C3BB51A82B99CF

v6.36.4 — License Fix

What's New

1. Fixed an issue where some users were repeatedly asked to re-enter their license key after already activating. Your activation now stays put across restarts and Windows updates.
2. A brief loss of internet no longer signs you out of Pro — your license is kept and restored automatically when you reconnect.

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Details

This update fixes the root cause of repeated re-activation prompts. The local license cache was being encrypted with an unstable key that could change between app launches, causing it to become unreadable and get deleted silently. After installing this update, your activation will migrate automatically on first launch — no action required.

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Download

YUKFUE_Setup_v6.36.4_internal.exe
SHA256: 0402DE9A40A77BB9FB20343F1CE5CC738DEAE9C82895F21A649499F7E11FEC85