If you want to change the Welcome text when Windows 7 loads, you will need to open a Command prompt (Start > Run > cmd) and type : takeown /F c:\Windows\System32\en-US\winload.exe.mui followed by icacls c:\Windows\System32\en-US\winload.exe.mui /grant administrators:F Then go to System32\en-US directory and copy the file to your desktop.
Open Resource Hacker and load the file you have just saved. Using the tree menu on the right, navigate to String Table > 63 > 1033. Use the cursor to navigate through the text and change Welcome in both places. Click Compile and File > Save. Copy the file back to System32\en-US directory and from the same command prompt type mcbuilder. Restart Windows and you will see the text you have just replaced.