Check for physical signs, run diagnostic tools, compare with known good images, and verify system logs.
Check for physical signs, run diagnostic tools, compare with known good images, and verify system logs.
Checking the authenticity of your Windows 7 copies is important. Since you have physical DVDs, you can compare their contents with known legitimate ISO files. Look for consistent file structures, registry entries, and system behavior. If possible, use a trusted source or scan the discs with a reliable antivirus before installing.
Analyze the differences between a verified hash and your own.
To check hashes on Linux, use "sha1sum <filename>" and on Windows with CMD run "certutil -hashfile <filename>".