hi i've downloaded windows 7 all in one version and have installed ultimate x64. but the checksum of the iso is different to any released by microsoft, is this expected as the iso has been modified to fit all the version? and x86/x64
There you go...you have answered your own question. AIO versions have been modified to include...all versions... So of course the hash will be different Hopefully you got the AIO version from a trusted source so you can be confident in knowing that whoever made the AIO disk didnt include any unwanted malware...
if indeed it included malwares of some sort, would antiviru software such as Eset be able to detect it?
First Now that many creates the Iso In Different ways... Some May Delete the ei.cfg from The Sources Folder,or some may just Rename the File On Each Time thecheck Sums would Be Different.........
Yes,Defenitely An Updated version Of Antivirus Would Defenitely Find It.. But I Recommend KIS 2010...
Really... You're that confident that AV could find it. I have never seen or heard of an AV program that can detect 100% of rootkits, Trojan and viruses in existence. But if your AV can't see it, everything must be ok. Personally, I would not install any OS that didn't come for a trusted source. After all, the best time to install a rootkit is as part of the OS installation itself.
Nobody is scaring you, but if you got an OS install CD from someone who you don't know on the internet saying it's that OS, and you believed him, it's your problem... it might be 100% clean, just as you expect, but it can also include some trojans that are so new, or self made by a hacker to steal your bank accounts etc etc.... to be 1000% sure, either get MSDN releases (where hashes are 100% verified, virus/trojan clean), or buy windows from microsoft, some editions for students start at $30...