4.7/5 Votes: 7,812
Speed Guide Inc
September 11th, 2022
Windows 11 / Windows 10 / Windows 8 / Windows 7
668 KB

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The TCP Optimizer is a free, easy-to-use Windows program that lets you tune and optimize your internet connection by providing an intuitive interface.

The TCP Optimizer is a free Windows program that will help you improve your Internet connection and make it work better. It works well with most of the most popular browsers. Both new and experienced users can use the program to find and change the TCP/IP parameters in the Registry. It can also figure out what the best connection speed is for you.

The program makes it easy for both new and experienced Windows users to change the settings for the TCP/IP parameter. It works well for both new and experienced users. The TCP Optimizer is a Windows program that will help you make your Internet connection better. It doesn’t need to be installed and is made to work without any problems.

It makes it simple to tune all TCP/IP-related settings, such as MTU and RWIN, as well as more complex parameters like QoS and ToS/Diffserv priority, thanks to the way it is designed. The application is compatible with all of the most recent versions of Windows and comes with a variety of extra tools, such as one that determines the greatest feasible packet size and another that tests the average latency across many hosts (MTU).

Key Features Of TCP Optimizer

TCP Auto-Tune

With this setting, you can change how Windows automatically tunes the TCP Receive Window. High-speed, high-latency transfers, like most broadband internet connections, can be slowed down by a small TCP Receive Window. We suggest setting this to “normal” for most connections. Also, make sure that “Windows Scaling heuristics” is turned off below so that Windows doesn’t change this parameter on its own.

Direct Cache Access

Direct Cache Access (DCA) lets an I/O device, like a network controller, send data directly into a CPU cache. The goal of DCA is to cut down on memory latency and the amount of memory bandwidth needed in environments with a high bandwidth (Gigabit). DCA needs help from the system’s I/O device, chipset, and CPU (s).

Boost Your Internet Speed

TCP Optimizer is a tool that may be used to increase your connection rate. To do this, it prepares your final connection settings.

Highly Customizable

Lets you customize almost all your internet settings.

People Also Ask

What is TCP Optimizer

The TCP Optimizer is a simple, free Windows tool that offers a user-friendly graphical user interface for the purpose of fine-tuning and improving the performance of your Internet connection. Simply download it and launch it with administrative privileges; installation is not necessary.

Does TCP Optimizer really work?

The TCP Optimizer is a simple and useful program that can help you improve your Internet connection. It makes it easy to find the most important registry and MTU values and test the speed of your connection. The TCP Optimizer is well-documented and works on 99% of all systems. It can make networks work better and reduce packet loss.

Is TCP Optimizer safe?

Yes. The TCP Optimizer is completely safe to use. However, sometimes anything may not function or affect your Internet connection.

Is TCP Optimizer free?

Yes. TCP Optimizer is completely free to download and use for a lifetime.

How to Download TCP Optimizer?

➥ Go to and find TCP Optimizer by typing on the search bar.
➥ View it and click on the download button at the top of the page.
➥ Then it will take you to the download link page.
➥ Wait 10 seconds until the download links are visible.
➥ Click on the download link, It will be downloaded to your computer.
➥ If It doesn’t download with the first link you can definitely download it with the second download link.

How to install TCP Optimizer?

➥ Wait until it is fully downloaded.
➥ Double-click on the downloaded application.
➥ Follow the installation guidelines.
➥ Once the installation is completed restart your computer(better practice).
➥ Now you can click on the icon and run the application.

How to uninstall TCP Optimizer?

➥ Go to the Control Panel of your Windows computer.
➥ Click on programs and features.
➥ Find TCP Optimizer, then select it and right-click on it.
➥ Click on uninstall and confirm the action
➥ Open the roaming folder (press “Windows+R”) to delete app data.
➥ Then type “%AppData%” in the pop-up window and hit ENTER.
➥ Then it will open the Roaming folder.
➥ Select the TCP Optimizer folder and delete it.


The TCP Optimizer is a simple, free Windows tool that offers a user-friendly graphical user interface for the purpose of fine-tuning and improving the performance of your Internet connection. You just need to download it and execute it, there is no need to install it. The tool makes it simple to determine the optimal MTU and RWIN values, evaluate latency, and adjust all of the critical registry settings that are associated with broadband connectivity.


This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system which is developed and distributed by Speed Guide Inc. All company names, product names, registered trademarks, and logos are the property of their respective owners.