Command option Sample:REG SAVE

Search command sample in the internet.It is the result.

Reg Save Command    Penetration testing bY eXpl0i13r: SAM,SYSTEM, & LSA Secrets Dumping using Reg Save Command : http://blackpentesters.blogspot.com/2014/02/samsystem-lsa-secrets-dumping-using-reg.html
reg save HKEY_LOCAL_MACHINE\Security\Policy\Secrets c:\lsa    Penetration testing bY eXpl0i13r: SAM,SYSTEM, & LSA Secrets Dumping using Reg Save Command : http://blackpentesters.blogspot.com/2014/02/samsystem-lsa-secrets-dumping-using-reg.html
reg save HKLM\SAM c:\SAM    Penetration testing bY eXpl0i13r: SAM,SYSTEM, & LSA Secrets Dumping using Reg Save Command : http://blackpentesters.blogspot.com/2014/02/samsystem-lsa-secrets-dumping-using-reg.html
reg save HKLM\SYSTEM c:\SYSTEM    Penetration testing bY eXpl0i13r: SAM,SYSTEM, & LSA Secrets Dumping using Reg Save Command : http://blackpentesters.blogspot.com/2014/02/samsystem-lsa-secrets-dumping-using-reg.html
reg save HKU\Default_User C:\Users\Default\NTUSER.DAT    How Windows 10 Pro installs unwanted apps (Candy Crush) and how to stop it – Daniel's IT Blog : http://blog.danic.net/how-windows-10-pro-installs-unwanted-apps-candy-crush-and-how-you-stop-it/
reg save HKU\Default_User    How Windows 10 Pro installs unwanted apps (Candy Crush) and how to stop it – Daniel's IT Blog : http://blog.danic.net/how-windows-10-pro-installs-unwanted-apps-candy-crush-and-how-you-stop-it/

search Google

https://www.google.com/#q=REG SAVE