安全模式是Windows用于修复操作系统错误的专用模式，是一种不加载任何驱动的最小系统环境，用安全模式启动电脑，可以方便用户排除问题，修复错误。
进入安全模式的方法是：启动计算机，在系统进入Windows启动画面前，按下F8键(或者在启动计算机时按住Ctrl键不放)，在出现的启动选项菜单中，选择“Safe Mode”，即可以安全模式启动计算机。安全模式下主要：修复系统故障 、恢复系统设置 、删除顽固文件 、彻底清除病毒。
但现在有些病毒会破坏安全模式，正所谓“损坏的安全模式”o(∩_∩)o。那么，我们如何修复被破坏的安全模式呢？把以下内容复制到记事本，另存在.reg文件。双击导入系统即可。
程序代码：
复制内容到剪贴板
代码:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot]
"AlternateShell"="cmd.exe"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\AppMgmt]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\Base]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\Boot Bus Extender]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\Boot file system]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\CryptSvc]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\DcomLaunch]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\dmadmin]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\dmboot.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\dmio.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\dmload.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\dmserver]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\EventLog]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\File system]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\Filter]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\HelpSvc]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\Netlogon]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\PCI Configuration]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\PlugPlay]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\PNP Filter]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\Primary disk]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\RpcSs]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\SCSI Class]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\sermouse.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\sr.sys]
@="FSFilter System Recovery"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\SRService]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\System Bus Extender]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\vga.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\vgasave.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\WinMgmt]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{36FC9E60-C465-11CF-8056-444553540000}]
@="Universal Serial Bus controllers"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E965-E325-11CE-BFC1-08002BE10318}]
@="CD-ROM Drive"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318}]
@="DiskDrive"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E969-E325-11CE-BFC1-08002BE10318}]
@="Standard floppy disk controller"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E96A-E325-11CE-BFC1-08002BE10318}]
@="Hdc"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E96B-E325-11CE-BFC1-08002BE10318}]
@="Keyboard"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E96F-E325-11CE-BFC1-08002BE10318}]
@="Mouse"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E977-E325-11CE-BFC1-08002BE10318}]
@="PCMCIA Adapters"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E97B-E325-11CE-BFC1-08002BE10318}]
@="SCSIAdapter"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E97D-E325-11CE-BFC1-08002BE10318}]
@="System"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E980-E325-11CE-BFC1-08002BE10318}]
@="Floppy disk drive"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{71A27CDD-812A-11D0-BEC7-08002BE2092F}]
@="Volume"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{745A17A0-74D3-11D0-B6FE-00A0C90F57DA}]
@="Human Interface Devices"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\AFD]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\AppMgmt]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Base]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Boot Bus Extender]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Boot file system]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Browser]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\CryptSvc]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\DcomLaunch]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Dhcp]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\dmadmin]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\dmboot.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\dmio.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\dmload.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\dmserver]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\DnsCache]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EventLog]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\File system]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Filter]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\HelpSvc]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\ip6fw.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\ipnat.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\LanmanServer]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\LanmanWorkstation]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\LmHosts]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Messenger]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NDIS]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NDIS Wrapper]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Ndisuio]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NetBIOS]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NetBIOSGroup]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NetBT]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NetDDEGroup]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Netlogon]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NetMan]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Network]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NetworkProvider]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\NtLmSsp]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\PCI Configuration]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\PlugPlay]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\PNP Filter]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\PNP_TDI]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Primary disk]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\rdpcdd.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\rdpdd.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\rdpwd.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\rdsessmgr]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\RpcSs]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\SCSI Class]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\sermouse.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\SharedAccess]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\sr.sys]
@="FSFilter System Recovery"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\SRService]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Streams Drivers]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\System Bus Extender]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Tcpip]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\TDI]
@="Driver Group"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\tdpipe.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\tdtcp.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\termservice]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\vga.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\vgasave.sys]
@="Driver"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\WinMgmt]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\WZCSVC]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{36FC9E60-C465-11CF-8056-444553540000}]
@="Universal Serial Bus controllers"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E965-E325-11CE-BFC1-08002BE10318}]
@="CD-ROM Drive"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E967-E325-11CE-BFC1-08002BE10318}]
@="DiskDrive"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E969-E325-11CE-BFC1-08002BE10318}]
@="Standard floppy disk controller"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E96A-E325-11CE-BFC1-08002BE10318}]
@="Hdc"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E96B-E325-11CE-BFC1-08002BE10318}]
@="Keyboard"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E96F-E325-11CE-BFC1-08002BE10318}]
@="Mouse"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}]
@="Net"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E973-E325-11CE-BFC1-08002BE10318}]
@="NetClient"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E974-E325-11CE-BFC1-08002BE10318}]
@="NetService"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E975-E325-11CE-BFC1-08002BE10318}]
@="NetTrans"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E977-E325-11CE-BFC1-08002BE10318}]
@="PCMCIA Adapters"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E97B-E325-11CE-BFC1-08002BE10318}]
@="SCSIAdapter"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E97D-E325-11CE-BFC1-08002BE10318}]
@="System"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E980-E325-11CE-BFC1-08002BE10318}]
@="Floppy disk drive"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{71A27CDD-812A-11D0-BEC7-08002BE2092F}]
@="Volume"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{745A17A0-74D3-11D0-B6FE-00A0C90F57DA}]
@="Human Interface Devices"
