I have a nice tip for you: The setup stores the MSI files in the folder
C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\Redistributables The 32Bit version is named
WPTx86-x86_en-us.msi, the 64Bit version is named WPTx64-x86_en-us.msi. The 3rd file (WPTarm-arm_en-us.msi) is needed for ARM based tablets/notebooks which run Windows RT. You can store them and use them on a different PC. This avoids
to download the files over and over again.