i am using a 64gb SanDisk Extreme micro xc v30 A2 card. It is read and writable with my Kamera (Canon Eos R) and my Phone (Xiaomi Note 7) but is not detected with my PC. I tried several card readers (intern and extern). It is not even detected with the san disk extreme pro uhs2 Reader. Not detected? Well it appears in the device manager but i can not find it in the working space to access it. Can you help me?
Please try the troubleshooting steps in the link below
Title: Memory card is not detected in Windows
Link: Cruzer flash drive NOT detected by Windows PC
Title: Memory card is not detected in Mac
Link: USB Flash Drive / Memory card not detected on Mac USB port
Hope it helps!!