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"termsrv.dll has an unknown checksum" fix pt2 - YouTube


- What is a checksum and why is it important? - What causes the termsrv.dll unknown checksum error? H2: How to fix termsrv.dll unknown checksum error on Windows 7 SP1 - Method 1: Uninstall the old patch and disable Microsoft Update - Method 2: Download and install the new patch from GitHub - Method 3: Replace the termsrv.dll file manually H3: Method 1: Uninstall the old patch and disable Microsoft Update - Step 1: Go to Control Panel > Programs and Features > View installed updates - Step 2: Find and uninstall the update KB3003743 - Step 3: Run msconfig and uncheck Microsoft Update in the Services tab - Step 4: Restart your computer H3: Method 2: Download and install the new patch from GitHub - Step 1: Go to https://github.com/fre4kyC0de/rdpwrap/releases and download the latest release of RDP Wrapper Library - Step 2: Extract the zip file and run install.bat as administrator - Step 3: Run RDPConf.exe and check if everything is green - Step 4: Restart your computer H3: Method 3: Replace the termsrv.dll file manually - Step 1: Download the termsrv.dll file for your system architecture from https://www.dll-files.com/termsrv.dll.html - Step 2: Go to C:\Windows\System32 and rename the original termsrv.dll file to termsrv.bak - Step 3: Copy and paste the downloaded termsrv.dll file to C:\Windows\System32 - Step 4: Restart your computer H2: How to prevent termsrv.dll unknown checksum error in the future - Keep your Windows up to date with the latest security patches - Use a reliable antivirus software and scan your system regularly - Avoid modifying or deleting system files without proper guidance H2: Conclusion - Summarize the main points of the article - Provide some tips or recommendations for the readers Article with HTML formatting: What is termsrv.dll and why does it have an unknown checksum?




If you are using Windows 7 Service Pack 1 (SP1) and you want to enable Remote Desktop Protocol (RDP) on your computer, you may encounter an error message that says "termsrv.dll has an unknown checksum". This error prevents you from accessing your computer remotely or allowing other users to do so. In this article, we will explain what termsrv.dll is, why it has an unknown checksum, and how to fix it.




termsrv.dll has an unknown checksum sp1


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What is termsrv.dll and what does it do?


Termsrv.dll is a dynamic link library (DLL) file that belongs to the Terminal Services component of Windows. It is responsible for handling RDP connections between your computer and other devices. RDP allows you to control your computer remotely from another device, such as a smartphone, tablet, or laptop. You can use RDP for various purposes, such as troubleshooting, file sharing, remote assistance, or working from home.


What is a checksum and why is it important?


A checksum is a numerical value that is calculated based on the data in a file. It is used to verify the integrity and authenticity of a file. If a file is modified, corrupted, or infected by malware, its checksum will change. Therefore, by comparing the checksum of a file with its expected value, you can detect any errors or tampering.


What causes the termsrv.dll unknown checksum error?


The most common cause of the termsrv.dll unknown checksum error is an outdated or incompatible patch that was installed on your Windows 7 SP1 system. This patch was released by Microsoft in November 2014 as part of the update KB3003743. It was intended to fix a security vulnerability in RDP that could allow remote code execution. However, this patch also changed the checksum of termsrv.dll, making it incompatible with some third-party tools that enable RDP on Windows 7 SP1.


How to fix termsrv.dll unknown checksum error on Windows 7 SP1




If you are facing the termsrv.dll unknown checksum error on your Windows 7 SP1 system, don't worry. There are several methods that you can try to fix it. Here are three of them:


Method 1: Uninstall the old patch and disable Microsoft Update




This method involves uninstalling the update KB3003743 that caused the termsrv.dll unknown checksum error and disabling Microsoft Update to prevent it from reinstalling automatically. Here are the steps:


  • Step 1: Go to Control Panel > Programs and Features > View installed updates



  • Step 2: Find and uninstall the update KB3003743



  • Step 3: Run msconfig and uncheck Microsoft Update in the Services tab



  • Step 4: Restart your computer



This method should restore your original termsrv.dll file and enable RDP on your Windows 7 SP1 system. However, this method also exposes your system to potential security risks, as you will not receive any future updates from Microsoft.


Method 2: Download and install the new patch from GitHub




This method involves downloading and installing a new patch that was developed by a GitHub user named fre4kyC0de. This patch is compatible with termsrv.dll and allows you to enable RDP on Windows 7 SP1 without uninstalling any updates. Here are the steps:


  • Step 1: Go to https://github.com/fre4kyC0de/rdpwrap/releases and download the latest release of RDP Wrapper Library



  • Step 2: Extract the zip file and run install.bat as administrator



  • Step 3: Run RDPConf.exe and check if everything is green



  • Step 4: Restart your computer



This method should fix your termsrv.dll unknown checksum error and enable RDP on your Windows 7 SP1 system. However, this method also requires you to trust an unofficial patch that may not be verified by Microsoft.


Method 3: Replace the termsrv.dll file manually




This method involves replacing your corrupted or incompatible termsrv.dll file with a working one that matches your system architecture. Here are the steps:


  • Step 1: Download the termsrv.dll file for your system architecture from https://www.dll-files.com/termsrv.dll.html



  • Step 2: Go to C:\Windows\System32 and rename the original termsrv.dll file to termsrv.bak



  • Step 3: Copy and paste the downloaded termsrv.dll file to C:\Windows\System32



  • Step 4: Restart your computer



This method should fix your termsrv.dll unknown checksum error and enable RDP on your Windows 7 SP1 system. However, this method also requires you to modify or delete system files without proper guidance.


How to prevent termsrv.dll unknown checksum error in the future




To avoid facing the termsrv.dll unknown checksum error again in the future, here are some tips that you can follow:



  • Keep your Windows up to date with the latest security patches.



This will ensure that your system is protected from any vulnerabilities or exploits that may affect RDP or other components.


  • Use a reliable antivirus software and scan your system regularly.



This will help you detect and remove any malware that may infect or corrupt your system files, including termsrv.dll.


  • Avoid modifying or deleting system files without proper guidance.



This will prevent you from causing any damage or instability to your system that may affect RDP or other functions.


Conclusion




useful and informative for you. If you have any questions or feedback, please feel free to leave a comment below.


FAQs




Here are some frequently asked questions about termsrv.dll and the unknown checksum error:


Q: What is the difference between RDP and Remote Assistance?




A: RDP and Remote Assistance are both features that allow you to access your computer remotely from another device. However, they have some differences. RDP allows you to take full control of your computer and use it as if you were sitting in front of it. Remote Assistance allows you to invite another user to view or control your computer with your permission. You can also chat with the other user and send files.


Q: How many users can connect to my computer via RDP at the same time?




A: By default, Windows 7 SP1 only allows one user to connect to your computer via RDP at a time. If another user tries to connect, the first user will be disconnected. However, you can use third-party tools or patches to enable multiple concurrent RDP sessions on your computer.


Q: How can I change the port number for RDP?




A: By default, RDP uses port 3389 to communicate with other devices. However, you can change this port number for security or compatibility reasons. To do so, you need to edit the registry on your computer. Here are the steps:


  • Step 1: Go to Start > Run and type regedit



  • Step 2: Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp



  • Step 3: Double-click on PortNumber and change the value to the desired port number in decimal format



  • Step 4: Restart your computer



Note: You need to have administrative privileges to edit the registry. Also, changing the port number may affect the firewall settings or other applications that use RDP.


Q: How can I check if RDP is enabled on my computer?




A: To check if RDP is enabled on your computer, you can use the following methods:


  • Method 1: Go to Control Panel > System and Security > System > Remote settings and see if Allow remote connections to this computer is checked



  • Method 2: Go to Start > Run and type cmd



  • Method 3: Type netstat -a and see if TCP port 3389 (or the port number that you have changed) is listening



Q: How can I troubleshoot RDP connection issues?




A: If you are having trouble connecting to your computer via RDP, you can try the following steps:


  • Step 1: Check if your computer and the remote device are connected to the same network or the internet



  • Step 2: Check if your firewall or antivirus software is blocking RDP traffic



  • Step 3: Check if your computer and the remote device have compatible versions of RDP



  • Step 4: Check if your computer and the remote device have the correct IP address, hostname, port number, and credentials for RDP



  • Step 5: Check if there are any errors or messages on your computer or the remote device related to RDP




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