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What troubleshooting have you done so far?
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Hi kathyt8952 ,
Would you please share us more details of the issue ?
Have you checked the driver issue from the device manager ?Have you tried to connect the device from another USB port to have a check ?
We can take the following steps to have a check .
1.Open "run" from the start menu, and run "services.msc".
2.Search "Apple Mobile Device".
3.On "status" column right click and then click on "Properties"
4.In the "general" tab find the "startup type" drop-down arrow menu and make sure "automatic" is selected.
5.Also in the general tab check the "service status". If it does not say "started" then click the start button.
6.At the bottom of the properties window click "apply".
If the issue persists, we can refer to the following link to have a troubleshoot :
iPhone, iPad, or iPod not recognized in iTunes for Windows
https://support.apple.com/en-us/HT204095
We may also need to ask for help from the Apple Forum .They may have some good advices for you .
NOTE: This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites.
Best regards