I had a customer that brought me a PC that the hard drive had crashed on. He had purchased a new hard drive, and wanted me to load Windows 10 on it. Every time I started the install, at the "Getting files ready for installation" step, the PC would pop-up an error with 0x8007025D error. Exact error said:
“Windows cannot install required files. The file may be corrupt or missing. Make sure all files for installation are available, and restart the installation. Error code: 0x80070570.”
I spent the better part of the day troubleshooting until I narrowed it down to bad memory modules. I changed out the RAM and it installed without a hitch.
I know this is an old post, but I wanted to share my experience in hopes that it may help someone else.
I reached this solution after deciding to try installing Windows 7 instead of 10 (that is what the original hard drive was running) and that install crashed with the same error. I dug through Internet forums and found all sorts of suggestions to fix this issue - everything from reformatting/replacing the hard drive (this was a brand new 2TB hard drive, and I had tried two other known good hard drives) to updating the BIOS (already done).
I finally stumbled on a site that suggested this error is caused by a memory misconfiguration, and suggested leaving only one stick of RAM in the first slot on the motherboard and trying again. Since I had extra memory on-hand, I just replaced both memory modules and tried again, and I was able to install Windows 10 without issue.
