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Communication Error 21000066 is a common error code in the Windows operating system. This error is typically encountered when the user attempts to access an application or program that is installed on the computer. This error is caused by a corrupt network communication protocol, which can be easily resolved.
This error usually occurs due to the presence of malware or other malicious software that has corrupted the computer's network connection. Malicious software is installed on the computer when the user downloads or installs any software or files from an untrusted source. It can also be caused by the failure of the computer's network adapter.
The best way to fix this error is to uninstall any software or files that were previously installed on the computer and then to scan the computer with an up-to-date anti-virus program. The anti-virus program will detect and remove any malicious software that is present on the computer. It may also be necessary to update the network adapter drivers to make sure that the network connection is working properly.
Once the computer is cleaned and the network adapter drivers are updated, it is important to reboot the computer and then try to access the application again. If the error still occurs, it is likely that the application is not compatible with the computer's operating system. In this case, the user should look for an updated version of the application or try to access the application from a different computer.
In some cases, the error may be caused by a problem with the computer's registry. The registry contains important information about the computer's hardware and software, and any corruptions can lead to errors like Communication Error 21000066. To fix this issue, the user should use a registry cleaner to scan the registry and repair any corrupt entries.
If none of the above methods work, the user should contact their computer manufacturer or an IT professional for further assistance. The manufacturer or IT professional will be able to provide more detailed troubleshooting steps to help resolve the issue. Additionally, they may be able to provide additional information about the application or program that is causing the error.
In conclusion, Communication Error 21000066 is a common error code encountered in Windows operating systems. This error is typically caused by the presence of malicious software on the computer or by a corrupt network connection. The best way to fix this error is to uninstall any software or files that were recently installed and to scan the computer with an up-to-date anti-virus program. Additionally, the user should update the network adapter drivers and clean the computer's registry. If none of these methods work, the user should contact their computer manufacturer or an IT professional for further assistance.
