what is GUID ?

I’ve seen this in uefi tool and mmtool what is this thing ? is it important ?

Not everything can be served on a silver platter. Manual research is required from time to time.

Very nice but still there is a thing that i did not got.
That is this:think that there is a 2 intel gop driver.Both drivers’s GUID is same so does it mean both can be used without any problem ?

i writed this for thread to be not forgotten

The same GUID header does not mean, that the hex code of the module "body" is identical.

The same GUID header does not mean, that the hex code of the module "body" is identical.




so do we should look to hex code ?

If you want to know, whether 2 BIOS modules are identical or not, you should open both files with an Hex Editor like HxD and choose the option "Analysis" > "File-compare…" > "Compare…"
Here are some screenshots:

Hex Code comparison 1.png

Hex Code comparison 2.png

Hex Code comparison 3.png

if there is difference modules aren’t identical right ?

Yes, the right hand screenshot of my last post shows the first difference.

but if guid is same the both modules can be used right ?

Do you really expect an answer?
If I would answer "Yes!" and the flashing procedure of the modded BIOS should fail, who will be responsable for the desaster?