Since official support has ended, the is the most reliable repository for "untouched" or original MSDN ISO images.
Windows 7 Ultimate SP1 Arabic x86 and x64 - Internet Archive
: Always check the file's checksum (SHA-256) if provided by the uploader to ensure the ISO hasn't been tampered with.
To run Windows 7 Ultimate SP1 (32-bit) effectively, your hardware should meet these minimum requirements: : 1 GHz or faster. RAM : At least 1 GB. Hard Disk Space : Minimum 16 GB for the 32-bit version.
: DirectX 9 compatible graphics card with WDDM 1.0 driver. Important Security Considerations
Downloading ISO files is primarily done through community archives, as Microsoft no longer officially hosts these downloads. Download Sources