MICROSOFT
Hyper-V
https://www.microsoft.com/en-us/server-cloud/solutions/virtualization.aspx
Microsoft Virtual PC
https://www.microsoft.com/en-us/download/details.aspx?id=3702
Windows XP Mode
https://www.microsoft.com/en-us/download/details.aspx?id=8002
ORACLE
Oracle VM VirtualBox
https://www.virtualbox.org/
VMWARE