Don't want to be stopped by such "Windows Update update error 3259" error message while you are trying to use your program next time. Thankfully, the methods to work around the Windows Update problem are fairly easy and should work in most cases. In this article, we have listed different solving process to fix WU_E_DS_INVALIDOPERATION A request was declined because the operation is not allowed. Pops up issues.
1.Click Startup and type cmd in the searchbox, then double click on cmd.exe.
2.Type gpupdate and press enter, then you can destroy virus on your computer.
1.Click Start, and enter into Control Panel.
2.Then choose Programs and Features.
3.After you enter in, you can see all your programs listed, right click the software you don't want.For example.I don't like 7-Zip 16.02(x64).I right click it and click Uninstall and a small window open, choose Uninstall again.