Powershell - CRC - Md5 Calculation

If you need to calculate CRC you can use this Microsoft tool  (FCIV)

https://www.microsoft.com/en-us/download/details.aspx?id=11533

Here is a syntax example but you could obviously use a different syntax

https://technet.microsoft.com/en-us/library/ee692796.aspx

Get-ChildItem C:\Scripts, C:\Test, "C:\Documents and Settings\Kenmyer\Desktop" -filter "*.ps1"

[update 2016.04.09]

Here it is a free tool about MD5 Calculation:

http://winmd5.com/