Windows 10 Laptop Question

garry1p wrote:

Kountryguy wrote:
When I insert an SD card, it is not recognized. If I remove it, restart and reinsert it, it is recognized. Any thoughts on how to correct this problem?

In simple terms when you "turn on" your PC it (computer) looks for the reader to see if it is there and ready.

When "you put" the SD card in the reader it sends an interrupt to the computer saying "look at me". Sounds to me like the interrupt signal is not always recognized by the computer and not a simple fix unless you are a tech.
On the other hand an SD card by a different manufacture may be a fix and worth a try.

Built in SD card readers ARE "USB" devices (they do not use a normal USB connection internally, instead they are either physically built on the MB or they are connected via a "header" connection but none the less they interface internally to a USB port hub).

USB ports have ZERO "hard interrupts", they are low priority devices. MB will randomly poll USB ports when there are open machine cycles..

HOWEVER, if it was in fact a GOOD reader AND good USB PORT/HUB then there would be ZERO REASON to reboot the PC.. All you have to do is WAIT a minute or two until the OS has the chance to poll.

This is not the case with the OPs issue.

I do not believe it is software (OS or driver related), it is most likely a hardware issue with the reader or USB port/hub failing and it is removed automatically by the OS when it fails..

If it has been removed by the OS due to hardware failure then a "reboot" may snap the reader back into working again.. TEMPORARILY.

Note that it may be a TEMPORARY "fix" at best, and chances are it may fail again while reading or writing to the card..

Any failure during reading or writing a SD card MAY result in data loss or corruption of the card data..

Recovering corrupted SD card data is not a certainty and you are taking chances by using it.

Card readers and USB ports/hubs DO FAIL.

While the OP can try different cards if they like, they DID plug their SD card into a DIFFERENT PC and are not having any trouble with that PC failing to see the card..

External USB card readers are a cheap fix to failing internal readers..