一，windows update無法自動更新，錯誤代碼80246008
解決辦法，參考
http://windows.microsoft.com/zh-CN/windows7/Windows-Update-error-80246008
如果遇到無法啓動BITS服務（錯誤1075：依存服務不存在， 或已標記爲刪除）
請執行如下步驟：
將以下代碼複製保存爲“某某.reg”，然後雙擊導入，重啓計算機（切記！！）,問題解決。
代碼：
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\EventSystem]
"DisplayName"="@comres.dll,-2450"
"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,00,20,00,4c,00,6f,00,63,00,61,00,6c,00,53,00,65,00,72,00,76,00,69,00,63,\
00,65,00,00,00
"Description"="@comres.dll,-2451"
"ObjectName"="NT AUTHORITY\\LocalService"
"ErrorControl"=dword:00000001
"Start"=dword:00000002
"Type"=dword:00000020
"DependOnService"=hex(7):72,00,70,00,63,00,73,00,73,00,00,00,00,00
"ServiceSidType"=dword:00000001
"RequiredPrivileges"=hex(7):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,\
67,00,65,00,00,00,53,00,65,00,49,00,6d,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,\
00,00,00,00
"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,\
00,01,00,00,00,e8,03,00,00,01,00,00,00,88,13,00,00,00,00,00,00,00,00,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\EventSystem\Parameters]
"ServiceDll"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,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,\
65,00,73,00,2e,00,64,00,6c,00,6c,00,00,00
"ServiceDllUnLoadOnStop"=dword:00000001
二，聯想筆記本win8無線打不開
win8的wifi一直顯示關閉，不管是筆記本機身上的無線開關還是Fn+F5，感覺都沒有反應，各種設置裏面無線或者wifi也都是灰色，無法打開，其實這時候只要裝一個聯想特有的電源管理軟件（也就是驅動）就可以了（可以去官網找對應筆記本型號的）。我裝的還是以前win7的電源管理，感覺win8版的不好用，不存在兼容性問題，即使裝的時候有提示！