去掉我的电脑中的文件夹：
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{0ddd015d-b06c-45d5-8c4c-f59713854639}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{35286a68-3c57-41a1-bbb1-0eae73d76c95}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{7d83ee9b-2244-4e70-b1f5-5393042af1e4}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{a0c69a99-21c8-4671-8703-7934162fcf1d}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{f42ee2d3-909f-4907-8871-4c22fc0bf756}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{31C0DD25-9439-4F12-BF41-7FF4EDA38722}PropertyBag]
"ThisPCPolicy"="Hide"
去掉另存为对话框中的文件夹
[HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{0ddd015d-b06c-45d5-8c4c-f59713854639}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{35286a68-3c57-41a1-bbb1-0eae73d76c95}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{7d83ee9b-2244-4e70-b1f5-5393042af1e4}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{a0c69a99-21c8-4671-8703-7934162fcf1d}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{f42ee2d3-909f-4907-8871-4c22fc0bf756}PropertyBag]
"ThisPCPolicy"="Hide"
[HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerFolderDescriptions{31C0DD25-9439-4F12-BF41-7FF4EDA38722}PropertyBag]
"ThisPCPolicy"="Hide"
最后发现还有一个文件夹“3D object”没有隐藏，只需定位到
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerMyComputerNameSpace
和
HKEY_LOCAL_MACHINESOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionExplorerMyComputerNameSpace
找到、删除这两个地方的{0DB7E03F-FC29-4DC6-9020-FF41B59E513A}，3D Object即消失。