Windows 10 and SDHC card

Hi Monica,

Thank you for posting your query on Microsoft Community. 

I appreciate your interest in Windows 10. We sincerely regret for the inconvenience caused.

Method 1: Run Hardware and Device Troubleshooter.

If your computer is having problems with a recently installed device or other hardware, try using the Hardware and Devices troubleshooter to fix the problem. It checks for common issues and makes sure that any new device or hardware attached to your computer was installed correctly.
Follow the steps given below: 

a) Press Windows + W together.
b) Write Troubleshooting in the search box right up corner and hit enter.
c) Click on Troubleshooting tab.
d) Click on view all option on the upper left corner.
e) Select the Hardware and Device options from the list.
f) Click Next to run the Hardware and Device Troubleshooter.  

Hope this information is helpful. Please feel free to reply in case you face any other issues with Windows in future.