Use the following solutions to fix the error message Windows cannot install required files during Windows installation, with error codes 0x800701B1, 0x8007025D ...

I had an old 500 GB HDD that I'd partitioned into an OS X partition and Win7 partition. I bought a new 750 GB HDD to put in the main drive bay of my MBP and an OptiBay to hold my old HDD. My desired ...