文件夹选项-"显示所有文件和文件夹"失效问题解决方法
方法一：导入注册表.
1）打开记事本
2）将以下虚线框内的内容复制到新建的记事本文件中
3）通过记事本文件菜单另存为show.reg
4）双击存储的showall.reg文件导入注册表，点击弹出的对话框是按钮即可。
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Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN]
"RegPath"="Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced"
"Text"="@shell32.dll,-30501"
"Type"="radio"
"CheckedValue"=dword:00000002
"ValueName"="Hidden"
"DefaultValue"=dword:00000002
"HKeyRoot"=dword:80000001
"HelpID"="shell.hlp#51104"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL]
"RegPath"="Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced"
"Text"="@shell32.dll,-30500"
"Type"="radio"
"CheckedValue"=dword:00000001
"ValueName"="Hidden"
"DefaultValue"=dword:00000002
"HKeyRoot"=dword:80000001
"HelpID"="shell.hlp#51105"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden]
"Type"="checkbox"
"Text"="@shell32.dll,-30508"
"WarningIfNotDefault"="@shell32.dll,-28964"
"HKeyRoot"=dword:80000001
"RegPath"="Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced"
"ValueName"="ShowSuperHidden"
"CheckedValue"=dword:00000000
"UncheckedValue"=dword:00000001
"DefaultValue"=dword:00000000
"HelpID"="shell.hlp#51103"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden\Policy]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden\Policy\DontShowSuperHidden]
@=""
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如果还不行就用方法二：
1）打开记事本，把以下虚线框内的代码复制进去。
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[Version]
Signature="$Chicago$"
[DefaultInstall]
addreg=add
delReg=del
[del]
HKCU,Software\Microsoft\Windows\CurrentVersion\Policies\Explorer, NoFolderOptions
HKCU,Software\Policies\Microsoft\Windows
HKLM,SOFTWARE\Policies\Microsoft\Windows\CurrentVersion
[add]
HKCU,Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced, Hidden, 0x00010001, 1
HKLM,SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL, CheckedValue, 0x00010001, 1
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2）另存为 Hidden.inf
3）找到这个文件，右键--安装，即可