You must use another method to restore Windows without an OS CD.
You must use another method to restore Windows without an OS CD.
Upgrade the Lenovo Y50 with a 512 GB SSD while replacing its single HDD. The challenge is limited storage space and no official CDs from Lenovo. You can reinstall Windows 8.1 using the same key as the original unit. An external USB3.0 HDD enclosure might offer a solution.
Avoid sourcing it through TPB. Opt for your current key during setup, generate a bootable USB, then apply the link to refresh media.