1、打开注册表，HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Fips. .确认"Start"的值为1，如果不是的话将其改为1重启！
2、ipsec加密安全驱动导致无法启动服务的，用下面reg导入后重启！Windows Registry Editor Versio荏鱿胫协n 5.00[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PolicyAgent]"Type"=dword:00000020"Start"=dword:00000002"ErrorControl"=dword:00000001"ImagePath"=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,00,6c,\00,73,00,61,00,73,00,73,00,2e,00,65,00,78,00,65,00,00,00"DisplayName"="IPSEC Services""DependOnService"=hex(7):52,00,50,00,43,00,53,00,53,00,00,00,54,00,63,00,70,00,\69,00,70,00,00,00,49,00,50,00,53,00,65,00,63,00,00,00,00,00"DependOnGroup"=hex(7):00,00"ObjectName"="LocalSystem""Description"="管理 IP 安全策略以及启动 ISAKMP/Oakley (IKE) 和 IP 安全驱动程序。""PolstoreDllRegisterVersion"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PolicyAgent\Security]"Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\00,00,02,00,60,00,04,00,00,00,00,00,14,00,8d,00,02,00,01,01,00,00,00,00,00,\05,0b,00,00,00,00,00,18,00,9d,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,\23,02,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,20,\02,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,05,12,00,00,00,01,01,\00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PolicyAgent\Enum]"0"="Root\\LEGACY_POLICYAGENT\\0000""Count"=dword:00000001"NextInstance"=dword:00000001
3、修复IPSECServices服务无法启动的问题可以试试以下几种方法：1。CMD中运行命令：netsh winsock reset2。安装或重装MicroSoft 网络客户端3。IPSECServices 所依赖服务是否有效。特别是由于使用增加连接数的补丁或者突然断电等而导致Tcpip.sys文件损坏、或者Tcpip.sys文件丢失从而导致设备管理器“非即插即用驱动程序”TCP/IP Protocol Driver无法启动，而IPSECSdrvices无法启动。可以尝试修复Tcpip.sys文件
4、首先我检查网络是连通的，在自己设置网卡的IP情况下，ping DNS 服务器的IP都能ping通。 Remote Procedure Call (RPC)服务是启动的，再手工查杀病毒及删除潞弘乱啖恶意思软件后，还是一样无法启动，我就干脆修复winsock <方法：运行CMD NETSH WINSOCK RESET>让它复位，重启电脑后还是无法启动IPSEC服务，后来才想到修改注册表 ，打开注册表编辑器, 浏览到HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Fips. .确认"Start"的值是4，天呀终于找到问题所在了，原来这项值关闭了，把“Start”的值改成1， 重新启动电脑, 、OK问题解决。
