The most advanced Windows optimization tool for gamers, professionals, and power users. Boost performance, ensure lightning-fast speed, and secure your system.
Boost FPS with GPU scheduling, disable core parking for instant CPU response, HPET timing optimization, game priority booster, and clear shader caches from NVIDIA, AMD, and Intel GPUs.
Optimize CPU scheduling, memory management, visual effects, power plans, and hardware scheduling. Includes NTFS extreme tuning, prefetch reconfiguration, and ultimate power plan activation.
Optimize TCP/IP settings with extreme tuning, DNS cache flushing, MTU values, network IRQ priority, and adapter power management. Disable Nagle's algorithm for reduced latency.
Deep clean temporary files, browser caches, Windows Update cache, shadow copies, and system junk files. Includes safe browser cleanup that preserves passwords and login data.
Intelligent memory management with working set optimization, standby memory clearing, and memory compression tuning. Kills memory-hogging background apps for better multitasking.
Detect crypto miners (XMRig, Ethereum miners), hidden processes, and resource hogs. Scan for suspicious background activities and terminate malicious processes automatically.
Safely remove unnecessary apps. Includes enhanced bloatware management with registry cleanup.
Scan for unsigned drivers, verify system file integrity, check core Windows components, and backup driver lists. Quick health verification without lengthy scans.
Optimize startup programs, reduce boot delay with registry tweaks, disable unnecessary startup items, and manage Windows services faster system startup.
Try Semido Extreme Today.
Guaranteed Tested 100% — No malware • No bundled software • Verified clean
Complete activation guide - lifetime license in 4 simple steps
Go to semidoextreme.com and click the Download button. Save the installer to your PC.
Run the installer and follow the setup wizard. Launch SEMIDO Extreme after installation.
Click GetKey in the navigation bar, choose your payment method (Lemon Squeezy), and complete the purchase.
The software will show an activation popup. Enter your received license key and click Submit. Activation complete! Full lifetime functionality unlocked.
Having issues? Here are the most common problems and their solutions
Windows SmartScreen may block unrecognized apps. This is normal for new software. SEMIDO Extreme is 100% safe and virus-free.
💡 Permanent fix: Add semidoextreme.com to your browser's trusted sites, or temporarily disable SmartScreen in Windows Security → App & Browser Control → Off (re-enable after install).
This error usually means Windows is blocking the executable or you're running an incompatible version. Here's how to fix it:
🔧 Still blocked? Open Command Prompt as Admin and run: icacls "C:\Users\%USERNAME%\Downloads\SEMIDO_Extreme_v12_Setup.exe" /grant Everyone:F
SEMIDO Extreme modifies kernel-level settings and MUST be run with Administrator privileges to access all 150+ optimizations.
💡 Permanent fix — Always run as Admin: Right-click shortcut → Properties → Compatibility tab → Check "Run this program as an administrator" → Apply → OK. Now it always launches with admin rights.
The UAC prompt appears every time SEMIDO starts because it needs admin rights. To stop UAC prompts only for SEMIDO:
For advanced users who want zero UAC interruptions while using SEMIDO (not recommended for everyday use):
⚠️ WARNING: This disables ALL UAC prompts system-wide. Only use this if you're experienced with PC security. Re-enable after your SEMIDO session by dragging the slider back to the default position.
✅ Safer alternative: Use the Task Scheduler method above to bypass UAC only for SEMIDO Extreme without disabling system-wide protection.
Some antivirus programs may flag SEMIDO because it accesses system-level functions (registry, CPU, kernel parameters). This is a false positive — SEMIDO is 100% clean.
✅ VirusTotal Scan: SEMIDO Extreme is regularly scanned on VirusTotal with 0/70 detections. You can verify yourself at virustotal.com.
SEMIDO Extreme works on Windows 7 but requires:
💡 Install both frameworks, restart your PC, then run SEMIDO Extreme again.
Our support team will get back to you as soon as possible.
📧 Contact Support — support@semidoextreme.comFind answers to common questions about SEMIDO Extreme PC speed up software
SEMIDO Extreme is a high-performance PC optimization suite designed for Windows users who want maximum speed, stability, and efficiency. It goes far beyond basic junk file cleaning by combining advanced system tuning and intelligent resource management in one powerful tool. With a single click, SEMIDO Extreme can: Optimize RAM usage for smoother multitasking Enhance CPU and GPU performance dynamically Detect and remove hidden bloatware and unnecessary background processes Identify and eliminate crypto miners and resource-draining threats Improve startup speed and overall system responsiveness Built with performance and simplicity in mind, SEMIDO Extreme delivers professional-grade optimization without complexity. Trusted by over 50,000 users worldwide and rated 4.9★, it’s a reliable choice for anyone looking to unlock their PC’s full potential.
You can speed up your PC for free by using SEMIDO Extreme's 7-day free trial. It includes all Pro features: system cleanup, RAM optimization, gaming boost, network tuning, and security scanning — no credit card required. Download the free trial from semidoextreme.com.
Yes, SEMIDO Extreme is 100% safe and guaranteed tested. It contains no malware, no bundled software, and is virus-free verified. Over 15,000 downloads with a 98% satisfaction rate. The software undergoes rigorous testing before release.
To speed up a slow PC, download SEMIDO Extreme and run a one-click optimization. It automatically cleans junk files, optimizes RAM, disables unnecessary startup programs, removes bloatware, and boosts gaming performance. You'll see up to 450% speed improvement on Windows 7, 8, 10, and 11.
Yes, SEMIDO Extreme v12 fully supports Windows 11 (32-bit and 64-bit), as well as Windows 10, 8.1, 8, and 7. It's optimized for the latest Windows updates and includes specific tweaks for Windows 11 performance improvements.
Have questions? We're here to help. Reach out to us anytime.
