有部分win7系统用户在使用过程中遇到这样一个情况，就是在启动power服务的时候发现无法启动，并提示“错误2：系统找不到指定文件”，如果这个服务没有开启计算机就无法正常使用，要怎么办呢？接下来给大家讲解一下具体的解决方法如下。
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步骤： 1、在win7系统中任意位置新建一个文本文档（在任意空白处单击右键，选择“新建”—“文本文档”）； 2、打开“新建文本文档”，将下面内容复制进去：
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Power] “DisplayName”=”@%SystemRoot%\\system32\\umpo.dll,-100” “Group”=”Plugplay” “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,00,73,\ 00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,\ 6b,00,20,00,44,00,63,00,6f,00,6d,00,4c,00,61,00,75,00,6e,00,63,00,68,00,00,\ 00 “Description”=”@%SystemRoot%\\system32\\umpo.dll,-101” “ObjectName”=”LocalSystem” “ErrorControl”=dword:00000001 “Start”=dword:00000002 “Type”=dword:00000020 “ServiceSidType”=dword:00000001 “RequiredPrivileges”=hex(7):53,00,65,00,54,00,63,00,62,00,50,00,72,00,69,00,76,\ 00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,53,00,65,00,63,00,75,00,\ 72,00,69,00,74,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,\ 00,00,00,53,00,65,00,41,00,73,00,73,00,69,00,67,00,6e,00,50,00,72,00,69,00,\ 6d,00,61,00,72,00,79,00,54,00,6f,00,6b,00,65,00,6e,00,50,00,72,00,69,00,76,\ 00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54,00,61,00,6b,00,65,00,\ 4f,00,77,00,6e,00,65,00,72,00,73,00,68,00,69,00,70,00,50,00,72,00,69,00,76,\ 00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c,00,6f,00,61,00,64,00,\ 44,00,72,00,69,00,76,00,65,00,72,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,\ 00,67,00,65,00,00,00,53,00,65,00,42,00,61,00,63,00,6b,00,75,00,70,00,50,00,\ 72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,\ 00,73,00,74,00,6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,\ 67,00,65,00,00,00,53,00,65,00,49,00,6d,00,70,00,65,00,72,00,73,00,6f,00,6e,\ 00,61,00,74,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,\ 00,00,53,00,65,00,41,00,75,00,64,00,69,00,74,00,50,00,72,00,69,00,76,00,69,\ 00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,68,00,61,00,6e,00,67,00,\ 65,00,4e,00,6f,00,74,00,69,00,66,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,\ 00,65,00,67,00,65,00,00,00,53,00,65,00,55,00,6e,00,64,00,6f,00,63,00,6b,00,\ 50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,44,\ 00,65,00,62,00,75,00,67,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,\ 65,00,00,00,00,00 “FailureActions”=hex:00,00,00,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,\ 00,02,00,00,00,60,ea,00,00,02,00,00,00,60,ea,00,00,02,00,00,00,60,ea,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Power\Parameters] “ServiceDll”=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,\ 75,00,6d,00,70,00,6f,00,2e,00,64,00,6c,00,6c,00,00,00 “ServiceMain”=”UmpoMain”
3、在“新建文本文档”左上角依次点击“文件”—“另存为”，在保存界面首先将“保存类型”下拉菜单中选择“所有文件”，然后将文件名修改为“power on.reg”点击保存；
4、在刚创建的“Power on.reg”文件上单击右键，选择“管理员取得所有权”；
5、然后双击运行该文件，在弹出的提示框中选择“是”，即可重新开启此服务。
关于Win7系统power服务无法启动提示找不到指定文件怎么办就跟大家介绍到这边了，有碰到这样情况的用户们可以按照上面的方法步骤来操作吧，希望对大家有所帮助。