Hello. I'd like to know if anyone has purchased the Windows Upgrade Offer (www DOT windowsupgradeoffer DOT com), and could tell me a bit about the purchase date verification. I have a system bought just before the eligibility period, and (most likely) no sales ticket. Is Microsoft's verification of the purchase date strict? I've bought an Asus notebook a tad before june 2, the beginning of the offer eligibility period, and it has several problems which I attribute to lack of drivers (!), which is why I want to upgrade. Asus has been unable to fix the issue; they won't offer neither the original system image with crapware for reinstallation, nor proper updated drivers. I expect win8 to fix those problems. Moreover, I bought this system in another country (US Best Buy), and I don't think I will be able to locate the purchase ticket, given I never expected to use it again. Might be able to find it somewhere, but it's unlikely. Thanks!