To troubleshoot this issue, use one of the following methods, as appropriate for your situation:
Run the DVD on a different computer to determine whether the DVD works correctly.
Test your DVD drive by using an official Windows installation DVD.
Attach the ISO file to a virtual machine to check whether it is corrupted.
When you troubleshoot this issue, first check whether the ISO file is corrupted. Each ISO file that you download from the MSDN Subscriber Downloads website has a SHA1 value that you can compare with the SHA1 value on the MSDN Subscriber Downloads website. However, the Microsoft Volume Licensing Service Center (VLSC) site currently does not list checksums or SHA1 values.
To compare the SHA1 values for the ISO file that you downloaded, follow these steps:
Install the Microsoft File Checksum Integrity Verifier tool. To download the tool, go to the following Microsoft Download Center website:
Windows 10 Pro, released in July 2015, Windows 10 Enterprise, released in July 2015, Windows 7 Enterprise, Windows 7 Home Premium, Windows 7 Professional, Windows 7 Home Basic, Windows 7 Ultimate, Windows Server 2008 R2 Datacenter, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 Standard, Windows 8, Windows 8 Enterprise, Windows Server 2012 Datacenter, Windows Server 2012 Essentials, Windows Server 2012 Standard