Hi,
Thank you for posting your query.
Kindly follow the steps provided below to resolve your issue.
Run the Windows Update Troubleshooter
Windows 10: Select Start > Settings > Update & Security > Troubleshoot, then select Windows Update under Get up and running, and then select Run the troubleshooter.
**Make sure Windows Update and Background Intelligent Transfer services are available and running.
Click Start, type services.msc in the Start Search text area, and then click services.msc in the programs list. If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
Double-click Background Intelligent Transfer Service.
If the Startup status lists Stopped, click Start and then click OK. If the status is Running, click Restart
Double-click Windows Update.
If the Startup status lists Stopped, click Start and then click OK. If the status is Running, click Restart
Double-click Workstation.
If the Startup status lists Stopped, click Start and then click OK. If the status is Running, click Restart
Close the Services window and try to install updates again.
Reset Windows Update in Windows 10
https://www.tenforums.com/tutorials/24742-reset
Kindly try this direct download of KB4565483 update for 64 bit system.
http://download.windowsupdate.com/d/msdownload/
Note: This is a non-Microsoft website kindly take precautions when downloading anything.
Go to this link for your reference and other troubleshooting procedures https://answers.microsoft.com/en-us/windows/forum/all/windows-10-pro-v1909-unable-to-install-kb4565483/a4fd203d-ae5b-4983-b0e6-d69e47dd3a58
Do not hesitate to message us if you need further assistance.
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