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怎样更改文件类型?

怎样更改文件类型?

先在工具栏里修改下文件夹显示 要显示出后缀名 然后把txt改成rmvb就行了

重命名,把扩展名的TXT改成RMVB,或者你的系统默认把扩展名隐藏了,你就先随便进入一个文件夹,点击工具栏上面的工具->文件夹选项->查看,把那个隐藏扩展名前面的对号点没就行了

右键打开方式在列表里面选一个播放器确定

是病毒文件.

不要运行,打开盘符时使用运行,或第三方软件,修复注册表

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden]

"Text"="@shell32.dll,-30499"

"Type"="group"

"Bitmap"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,\

00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,53,00,\

48,00,45,00,4c,00,4c,00,33,00,32,00,2e,00,64,00,6c,00,6c,00,2c,00,34,00,00,\

00

"HelpID"="shell.hlp#51131"

[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"

将此文件编辑为.reg文件导入,

或在cmd 下输入 dir /adh x:\

(x为U盘盘符)