Acer N20c5 - Storage Driver

You may have a different storage mode. Boot into BIOS and check SATA Mode:

https://www.acer.com/ac/en/US/content/support acer n20c5 storage driver

The missing driver is the Intel Rapid Storage Technology Driver . Download it from the Acer TravelMate P2 support page or Intel's direct repository to resolve detection or performance issues. You may have a different storage mode