{

}

一、問題描述：安裝過Docker Toolbox，解除安裝後，重新安裝，無法正常使用，提示

Running pre-create checks...
Error with pre-create check: "Hyper-V is installed. VirtualBox won't boot a 64bits VM when Hyper-V is activated. If it's installed but deactivated, you can use --virtualbox-no-vtx-check to try anyways"
Looks like something went wrong in step ´Checking if machine default exists´

1.以管理員方式開啟cmd,輸入以下命令。（第二行命令參考第一行命令返回的結果）

C:\>bcdedit /copy {current} /d "No Hyper-V" 
The entry was successfully copied to {ff-23-113-824e-5c5144ea}. 

C:\>bcdedit /set {ff-23-113-824e-5c5144ea} hypervisorlaunchtype off 
The operation completed successfully.

3.下載安裝Docker Toolbox。

4.開啟安裝目錄，找到start.sh。

編輯start.sh，找到下面的程式碼片段：

STEP="Checking if machine $VM exists"
if [ $VMEXISTSCODE -eq 1 ]; then
  "${DOCKERMACHINE}" rm -f "${VM}" &> /dev/null || :
  rm -rf ~/.docker/machine/machines/"${VM}"
  #set proxy variables if they exists
  if [ -n ${HTTPPROXY+x} ]; then
    PROXYENV="$PROXY
 
ENV --engine-env HTTPPROXY=$HTTPPROXY"
  fi
  if [ -n ${HTTPSPROXY+x} ]; then
    PROXYENV="$PROXYENV --engine-env HTTPSPROXY=$HTTPSPROXY"
  fi
  if [ -n ${NOPROXY+x} ]; then
    PROXYENV="$PROXYENV --engine-env NOPROXY=$NOPROXY"
  fi

  "${DOCKERMACHINE}" create -d virtualbox $PROXYENV "${VM}"
fi

"${DOCKERMACHINE}" create -d virtualbox --virtualbox-no-vtx-check $PROXYENV "${VM}"

6.以後要用Docker，都要進入N0 Hyper-V 。