[Windows RT General] Osprey00:
Sure. There are a few different ways to do it. In order of simplest to most complicated...

METHOD 1 - Can be done solely from Windows RT (any version):

1. Follow these instructions to create a batch file.

2. Run the batch file on the tablet to get your key.

3. Either write the key down or right-click anywhere in the window, select Mark, highlight the key, right-click again (which will copy the key to the clipboard), paste the key into a text file and then copy that text file to another computer or backup drive.

4. Optional, but recommended: Check that the key is valid by inputting it into a key checker, such as The Ultimate PID Checker. If it tells you that the key is invalid, then try one of the other two methods.

METHOD 2 - Requires regular, non-RT Windows (XP/Vista/7/8):

1. In RT, open the charms bar, click Search, enter "Regedit" and run Regedit.

2. Export HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion to a .reg file.

3. Copy that .reg file to your non-RT Windows.

4. On your non-RT Windows (all remaining steps will be done there), right-click the .reg file and choose Edit. Change "CurrentVersion" to "CurrentVersionRT". Re-save the file.

5. Double-click on the .reg file and import it.

6. Download and install WinTK.

7. Run WinTK, paste "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersionRT" (without quotes) into the field and press the Decrypt button.

*If, for some reason, WinTK won't run, you can try this: download and unzip Produkey, run Regedit, export your CurrentVersion key to a backup .reg file, change the key name in your RT .reg file from "CurrentVersionRT" back to "CurrentVersion", remove all values in your RT .reg file except for DigitalProductId and DigitalProductId4 (make sure that they're NOT the ones under the DefaultProductKey sub-branch), import that (thus overwriting your Windows key with your Windows RT key), run Produkey, write down the Product Key, then import the backup .reg file to restore your Windows key (important, obviously).

8. Write down the product key.

9. Optional, but recommended: Check that the key is valid by inputting it into a key checker, such as The Ultimate PID Checker. If it tells you that the key is invalid, then try one of the other two methods.

10. Optional: Open Regedit again and delete the CurrentVersionRT key, just to clean up.

METHOD 3 - Can be done solely from Windows RT, but only on 8.0 (won't work on 8.1 Preview or 8.1 RTM) and is more complicated than Method 1:

1. Download and unzip the RT jailbreak tool.

2. Run RunExploit.bat. Choose 'R' from the menu. Let it finish, then press any key when it asks you to.

3. Download and install Win86emu.

4. Download and unzip Produkey.

5. Open the charms bar, click Search, enter "Regedit" and run Regedit.

6. Export HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion to a .reg file.

7. Find the Win86emu tile (icon is "x86") on your Start screen, flick down on it to bring up the options bar and tap Open File Location... or, at the Desktop, you can browse to C:\ProgramData\Microsoft\Windows\StartMenu\Programs\win86emu.

8. Double-tap the "x86 Registry Editor" shortcut.

9. In that registry editor, import the .reg file that you exported in step 4. This will import the settings into the special x86 registry that the emulator created when you installed it and which all x86 programs (including Produkey) will think is the real registry.

10. Double-tap the "Run x86 Program" shortcut.

11. Browse to and select the produkey.exe that you unzipped in step 2.

12. Find the Product Key listed for Windows in the window that appears and write it down. If nothing appears, click on Select Source and verify that it's searching the local computer (top-most radio button).

13. Optional, but recommended: Check that the key is valid by inputting it into a key checker, such as The Ultimate PID Checker. If it tells you that the key is invalid, then try one of the other two methods.

If one method doesn't seem to work for you, try one of the others.