That's just the way i store my updates in order to find them quicker, when creating silent installs, the name of file is untouched here are original file names: NDP30SP2-KB2756918-x86.exe NDP1.1sp1-KB2742597-X86.exe NDP20SP2-KB2742596-x86.exe NDP40-KB2742595-x86.exe NDP40-KB2468871-v2-x86.exe dotnetfx35setup.exe