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Actually there are several methods to backup Windows registry.其實有幾種方法備份Windows註冊表中。 Some of them, I’m discussing in this article.他們中的一些，我在這方面討論的文章。

Method 1: Using System Restore 方法1 ：使用系統還原

When we create a system restore point in Windows XP, it backs up the following items:當我們創建系統還原點在Windows XP中，備份下列項目：

• Registry註冊表
• DllCache dllcache
• Local User Profile本地用戶配置文件
• COM+ and WMI databases COM +和WMI的數據庫
• IIS Metabase IIS元數據庫

So if you want to backup the registry, creating a restore point is the safest way to do so.所以如果您想要備份註冊表，創建一個還原點是最安全的方式這樣做。 To create a restore point go to Start –> All Programs –> Accessories –> System Tools –> System Restore.要創建一個還原點轉到開始-> “所有程序- >”配件-> “系統工具” ->系統還原。 Create a system restore point from there.創建系統還原點從那裡。

Medhod 2: Backing up Individual registry keys medhod 2 ：備份個別的註冊表項

If you want to backup individual registry keys, go to Start –> Run –> regedit如果您想要備份個別的註冊表項，到“開始->運行- >” r e gedit
This will open the registry editor.這將打開註冊表編輯器。 Go to the registry you want to backup, right click it and select Export.去登錄你要備份，右擊它並選擇出口。

Method 3: Backing up the whole registry 方法3 ：備份整個註冊表

To backup the whole registry, go to Start –> Run –> regedit備份整個註冊表，轉到開始-> “運行- >” r e gedit
This will open the registry editor.這將打開註冊表編輯器。 Go to File –> Export.去檔案-> “導出。 This will open the save registry dialog.這將打開保存註冊表對話框。 After the name, select “All” from Export Range and save the registry.名稱後，選擇“所有”從出口的範圍和保存註冊表。

Method 4: 方法4 ：

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This method is very old but still usable for dial-up internet users.這種方法是很舊的，但仍然可用於撥號上網的用戶。

Use the below method to resume internet connection while LogOff / Fast User Switching,使用下面的方法恢復網際網路連線，而註銷/快速用戶切換，

Start -> Run then type regedit and press enter “開始->運行然後鍵入r egedit，然後按下E NTER

Locate the following entry,找到以下條目，

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon hkey_local_machine \軟件\微軟\ Windows NT的\ currentversion \在Winlogon

Right-click within the right pane, select New and then select String Value, and give name as右鍵單擊在右窗格中，選擇新，然後選擇字符串值，並給予名稱

KeepRasConnections keeprasconnections

and press enter, then double click on KeepRasConnections and set the value to 1.並按下Enter鍵，然後雙擊就keeprasconnections和值設置為1 。 Close the Registry Editer and restart your PC.關閉註冊表editer並重新啟動電腦。 Now, your dial-up internet connection will resume after LogOff / Fast User Switching.現在，您的撥號Internet連接，將恢復後，註銷/快速用戶切換。

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