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Windows 7: Change Boot Logo/Screen?

08 Aug 2010   #121
thaimin

Windows 7 Pro 64 / 7 Pro 64 / 7 Home Prem 64
 
 

See Coder for Life - Projects - Win 7 Customizer Tools

Its a utility I made for just that purpose.


My System SpecsSystem Spec
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09 Aug 2010   #122
marcusj0015

Windows 7 Ultimate x64
 
 

ok so do i have to actually copy the bits in a hex editor?

or can i do the whole wim then renameto bin then replace in the dll?
My System SpecsSystem Spec
09 Aug 2010   #123
thaimin

Windows 7 Pro 64 / 7 Pro 64 / 7 Home Prem 64
 
 

Copy what bits? Using resource hacker or similar program will properly add in the bytes for you. Many resource editors will update the checksum automatically. You can run the program I linked to anyways. It will update the checksum if necessary or tell you that it is already up to date. You don't need a hex editor...
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09 Aug 2010   #124
0tolerance

Windows 7 Ultimate 64-bit
 
 

Quote   Quote: Originally Posted by marcusj0015 View Post
how do you update the crc???

i was thinking about doing the same thing with the animation but i didnt try it becaue you cant replace that my bits at once and not **** up the crc
I dun remember now......it's been awhile since I have messed with any of the animation hacks
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10 Aug 2010   #125
0tolerance

Windows 7 Ultimate 64-bit
 
 

Quote   Quote: Originally Posted by thaimin View Post
Copy what bits? Using resource hacker or similar program will properly add in the bytes for you. Many resource editors will update the checksum automatically. You can run the program I linked to anyways. It will update the checksum if necessary or tell you that it is already up to date. You don't need a hex editor...
I tried the edit using Resource Hacker and once I saved it, the file signature was gone.....
My System SpecsSystem Spec
10 Aug 2010   #126
marcusj0015

Windows 7 Ultimate x64
 
 

same here

but its very strange i have 1 copy of windows 7 and two boot options the the same win 7 and one boots up the flag and the other dosent


i asked aout the hex editor becasue you said you had success with a hex editor
My System SpecsSystem Spec
10 Aug 2010   #127
thaimin

Windows 7 Pro 64 / 7 Pro 64 / 7 Home Prem 64
 
 

Okay. PE files (EXE, DLL, SYS, etc) have two forms of security. The first is a checksum that every PE file has, although it is only checked on important ones. This is typically updated automatically with the resource editor, or can be done with the utility PEChecksum on my webpage. The second is a digital signature that is only put on code that really needs to be secured, such as winload.exe. This is the one you are probably having a problem with. To 'update' this you would need the original private key used to sign it (which Microsoft isn't going to give you) or you can sign it yourself like I listed before.

So if during the boot it says that the checksum is wrong, use PEChecksum.
If it says the digital signature is wrong, you need to re-sign the file.

I think I was talking about using the hex editor like they said on that site you found for disabling all signature checks. I successfully found all the values I needed to change, but it didn't work and Windows still complained about the file.

Quote:
but its very strange i have 1 copy of windows 7 and two boot options the the same win 7 and one boots up the flag and the other dosent
Do you have two winloads? Like one osload and one winload? That is what that webpage (the one you linked to before) told you to do. They told you to make two options so you wouldn't brick your computer. Sadly, their method only works for beta and RC Windows 7, not release Windows 7.

You shouldn't need a hex editor for anything unless you are really planning to muck around in Windows binaries. Then I would recommend IDA Pro with Hexrays. It isn't really a hex editor, it is a de-compiler and dis-assembler, allowing to see the code (possibly) that was written to create the file. Microsoft has however heavily obfuscated their code, and especially winload.exe. That's the reason no one has cracked the release version of Windows yet.
My System SpecsSystem Spec
10 Aug 2010   #128
marcusj0015

Windows 7 Ultimate x64
 
 

ok well im gonna reinstall becasue theres a lot of clutter and ill continue with this after that

what files do i need from the Windows 7 SDK to sign files?

id rather not have the whole SDK
My System SpecsSystem Spec
10 Aug 2010   #129
thaimin

Windows 7 Pro 64 / 7 Pro 64 / 7 Home Prem 64
 
 

From the Windows SDK you need: MakeCert, pvk2pfx, and SignTool. I also recommend grabbing CertMgr.exe while you are at it. The whole SDK is awfully big for just signing.
My System SpecsSystem Spec
11 Aug 2010   #130
WaxyChicken

Win7 Ultimate x32
 
 

Keep us updated.
Several of us quiet ones are watching progress on this. :)
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 Change Boot Logo/Screen?




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