GTA 5 crc error on Lenovo. What do I do?

Every time I install disc 1 it works fine but when I get to disc 2 it says that there's a crc error. What do I do?

Bad disk. Seek a replacement. That is all that I can guess from so few details.

Yeah the CRC error most likely means that the second disc is damaged even if it doesn't look damaged. CRC stands for Cyclic Redundancy Check. It is a method used to determine if the data on the disc is valid and not corrupted.

In your case it looks like the disc is damaged and will need replacement.