However in some cases it's not an option to change to a different OS, e.g. Therefore, if possible you should change/upgrade the OS of your device. I made a thorough explanation in meta here.ĮDIT2: it was suggested to call MS support and/or sales unfortunately they do not help with WinXP anymore.ĮDIT3: please be aware that running an outdated OS without security updates poses security risks explained here as BurceWayne points out correctly. Although there is no way around using WinXP, I want to minimize security risks.ĮDIT1: Since quite a few people asked, please note why (in my opinion) this question is not a duplicate of XP Activation and Dual Booting, please see my explanation above. Preferably it also shouldn't require a network/internet connection. The solutions can be a workaround (disabling the activation check), but for security reasons, it shouldn't contain a binary download. In addition the question asks only if it can be done in general not how (neither does the existing answer say how), and about other problems (dual boot), so I decided to post the question again as specific question just about the activation process. The latest question/answer I could find here on superuser is this one: XP Activation and Dual Booting which doesn't provide an answer to my question. The phone number is not valid for activation anymore (I tried the German one) and the online activation does not work either (in a quick test within a DMZ other protocols like ICMP or HTTP worked fine when I accessed an internet server).

The 'regular' methods provided with XP (phone and online) don't work anymore. What Options are there to activate Windows XP nowadays?

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