While installing Windows 8.1 in Acer Extensa M2610 PC, I received the following error: Windows cannot be installed to the disk. The selected disk of the GPT partition style. I cant select any available drive and can’t proceed the installation. If you encountered the same error, you can continue installing Windows 8.1 by following the steps below. Reboot PC and enter BIOS. Enable Secure Boot and Never Launch CSM. Continue to install Windows 8.1