diff --git a/README.md b/README.md
index bcd198b..a2d12ca 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,8 @@ Something about scripts
 - Detect if the machine is operating in mainland of China or outside and switch mirror automatically.
 - Support the parameter of '-port' to modify ssh port of redhat series.
 - Detect the network of machine is DHCP or static automatically.
+- For windows DD package, default compression method is "gz", if your package is ".xz", you can add parameter -filetype "xz" to decompression it.
+- Support Raid 0, to add parameter -raid "0", the validation need to be certificated.
 
 ![1](1.jpg)
 
@@ -134,6 +136,10 @@ For Ubuntu, official recommend mirror lists are here:
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+**-raid "0"**: If your machine has only one hard drive, don't assign it!
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+
 **--dhcp-static**: Default to use DHCP to finish network configuration, if the network of your machine is static, you need to add it.
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