i have 2 computers, one is 32 bit and one is 64 bit. i bought windows 7 upgrade disk that came with both 32 and 64 bit. am i allowed to use both disk to install the 32 bit on one computer and the other on thew 64 bit with the same activation code?

No.The key is supposed to work with either version, but if you activate one, on the second online activation attempt, you should be toldthat the key is already in use.One license, one PC.As far as I know, there's nothing to prevent you from doing a phone activation by lying to Microsoft, same as for XP or Vista. I am not aware of any checks for having multiple PCs with the same key, once you've gone through activation. I've never tried it.

ill try that and let ya know the results.

You can only activate either the 32-bit version or the 64-version, not both. If you attempt to activate a second installation using the same product key by using activation phone support, your first Windows 7 installation will become non-genuine and becomedeactivated.Carey Frisch

If you attempt to activate a second installation using the same product key by using activation phone support, your first Windows 7 installation will become non-genuine and becomedeactivated. That statement/claim is most decidedly incorrect!The previous install will NOT somehow become deactivated. It will become, in a purely legal sense, a working but unlicensed installation.bobkn's answer is the correct answer. There are no inbuilt mechanisms which prevent this from occurring. Adherence to the relevent legal requirements is the responsibility of the license owner. It is possible to deploy two working installations on two different PCs, but it is not possible to do so in legitimately licensed fashion.

If you attempt to activate a second installation using the same product key by using activation phone support, your first Windows 7 installation will become non-genuine and becomedeactivated. That statement/claim is most decidedly incorrect!The previous install will NOT somehow become deactivated. It will become, in a purely legal sense, a working but unlicensed installation.bobkn's answer is the correct answer. There are no inbuilt mechanisms which prevent this from occurring. Adherence to the relevent legal requirements is the responsibility of the license owner. It is possible to deploy two working installations on two different PCs, but it is not possible to do so in legitimately licensed fashion. So you are saying thatyou can install it on twoseparate machines and activate one using online andfor the other,phone call to Microsoft and both will work?

So you are saying thatyou can install it on twoseparate machines and activate one using online andfor the other,phone call to Microsoft and both will work? Basically, yes, if you don't mind breaking Microsoft's license agreements. (I'm not sure what Microsoft would do to you if they caught you. Probably less than thetheft would justify.)As far as I know, there are no online checks for copies of Windows illicitly activated using the same key, once you'vegotten past activation.I don't believe that even WGA (Windows Genuine Advantage) would detect that.If I'm mistaken about any of that, corrections will be welcome.