Microsoft has made available the微軟已經提供了 Windows 7 RC視窗7鋼筋混凝土 and is now available for public download from Microsoft servers.現在是供公眾下載從微軟服務器。 You can now try the Windows 7 pre-release software and you can see the changes and fixes from the Beta testing.現在，您可以嘗試在Windows 7預發行版軟件，你可以看到的變化和修正的Beta測試。 Unlike the beta version, the Release candidate will be available till July 2009 and there is no limit to the product keys, so you have enough time to download the RC.不同的是測試版，發行候選人將於2009年7月為止，沒有限制的產品密鑰，所以你有足夠的時間下載的RC。
Some things to know about the RC:有些事情了解的RC：
This is pre-release software, so please read the following to get an idea of the risks and key things you need to know before you try the RC.這是預發行版軟件，因此請閱讀以下的想法得到了風險和關鍵的事情你需要知道你嘗試之前的RC。
- The RC will be available at least through July 2009 and we're not limiting the number of product keys, so you have plenty of time.區局可至少在2009年7月和我們不限制數量的產品密鑰，所以你有充裕的時間。
- The RC will expire on June 1, 2010 .區局將於6月1日，2010。 Starting on March 1, 2010 , your PC will begin shutting down every two hours.開始於2010年3月1日 ，您的PC將開始關閉每兩小時。 Windows will notify you two weeks before the bi-hourly shutdowns start. Windows將通知您前兩個星期的雙向小時的關閉開始。 To avoid interruption, you'll need to install a non-expired version of Windows before March 1, 2010 .為了避免中斷，您需要安裝一個非過期版本的Windows在2010年3月1日 。
- Be sure to back up your data and please don't test the RC on your primary home or business PC.一定要備份您的數據，並請不要測試區局在您的主家庭或企業電腦。
- Before installing the RC, please read the在安裝鋼筋，請閱讀 Release Notes發行說明 and和 Things to Know知道的事情 for important information about the release.對重要信息的發布。
- Be sure to turn on automatic updates in Windows Update in case we publish updates for the RC.一定要開啟自動更新的Windows更新的情況下，我們發布更新的鋼筋混凝土。
- You can install the Windows 7 RC on a PC running Windows Vista without backing up the PC—but we encourage you to make a backup for safe keeping.您可以安裝Windows 7鋼筋混凝土在PC上運行Windows Vista沒有備份個人電腦，但是，我們鼓勵您進行備份保管。 If you're running Windows XP or the Windows 7 Beta, you'll need to backup your data, then do a clean installation of the RC, then reinstall your applications and restore your data.如果您正在運行Windows XP或Windows 7測試版，您需要備份您的數據，然後執行乾淨安裝的鋼筋混凝土，然後再重新安裝您的應用程序和恢復您的數據。
You can check out the您可以檢查出 minimum system requirements最低系統要求 to install the Windows 7 RC.安裝Windows 7局。 RC is available in 32 bit and 64 bit versions.區局可在32位和64位版本。
I'm really getting tired of Windows Vista, so I want to try this out, but it is my main computer.我真的累了的Windows Vista，所以我想嘗試這件事，但它是我的主計算機。 I have too many files to back up effectively.我有太多文件備份有效。 Should I still go ahead and install the Windows 7 RC?仍要繼續進行，並安裝Windows 7鋼筋混凝土？ How hard is it to re-install Vista, once this expires?有多難重新安裝Vista，一旦過期？