Are there some easy ways to fix Installer Error 1721 problem? Using one of the following methods to remove Installer Error 1721 issue can save time for you.
1.Press Win + R, type service.msc in the search box, clicking OK.
2.On the Service window, find the service you want to uninstall, for example Application Experience, double-click on it and copy its service name - AeLookupSvc.
3.Press Win + R, type cmd in the input box, press enter.
4.Type sc delete AeLookupSvc, press enter.
5.Press F5 to refresh to service window, you will find AeLookupSvc is disappeared now.
Network adapter is also named Network Interface Card, it is an expansion card which used to enable your computer to access to network. You can use network adapter to connect both wired network and WiFi.
Check NETWORK ADAPTOR connection
1.Press Win key, the Start Menu will show up, right click on computer, and choose Manage.
2.On the new appeared computer management window, clicking Device manager on the left bar, and then all the devices on your computer will be listed on the right side. Locate and double-click on Network adapters, you can see the network adaptor on your computer now.
Download NETWORK ADAPTOR driver
1.Prepare another computer which can connect to internet.
2.Find the driver download page on the official website of your computer brand and model.
3.On the download page, locate the right download link of your computer, if your computer is 32-bit then choose 32-bit link, or else choose 64-bit link, click to download.
4.Copy downloaded installation package to the computer you want to install, un-zip it, open unzipped folder, double click on setup.exe, install process will start.
5.Follow the common installation progress: accept the License Agreement and click Next to finish the installation.
6.Restart your computer, run Device manager to check whether the driver has been installed.
Update NETWORK ADAPTOR driver
button, type device in the search box, right click on Device Manager in the searching result and choose Open.
2.The Device manager window will appear, locate and double click on Network Adapters, you will find the adapter below of your pc, right click on it and select
MODIFY NETWORK ADAPTOR SETTINGS
1.Click Start button on the left bottom corner of taskbar, click Control Panel.
2.On new appeared All control panel window, locate and click on Device Manger.
3.Device Manager window will open, find and double click on Network Adapters category and find your adapter, right click on it and choose Properties.
4.Navigate to Advanced tab, change settings according to your requirement.