warning before you do this , you can corrupt your pc.
if you start up a window 7 pc you will see your windows.
if you follow this step , windows 7 will work in the background of winuae

First of all install your "XP bare minimum" CD installation to your computer and install ALL THE DRIVERS you need including printers, networking, USB peripherals et all. Take care to configure your system as a REAL Windows system including network because once everything is finished
you'll be able to change that stuff only by Windows safe mode. So be very careful and proceed to next step only when you're sure that everything is completed. Remember that is NECESSARY to setup windows to auto login with an account, administrator for example, surely you'll be able to
find on the web how to do it. Of course you have to install WinUAE too and after that don't reset your machine while working on the next steps.

Now let's get serious.
Step 1 – Getting the rid of Windows XP bootscreen
- Place the HDF files in your D:\ hard drive
- Type in Run MSConfig and open the TAB "BOOT.INI"
- Flag the /NOGUIBOOT
- Close the software.
Do not reboot now, but with that operation you'll not see the "Windows logon screen"

Now to replace the windows shell with WINUAE

Type in RUN regedit
- Open "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\C urrentVersion\Winlogon"
- Find shell and modify it like this:
c:\winuae\winuae.exe -f "C:\winuae\Configurations\amiga.uae"
Of course you have to put your curren WinUAE installation path.

its working very good and you not see window is there