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We received an interesting question in yesterday's IE Expert Zone chat: now that Vista SP2 is available, will users who installed IE8 before installing SP2 be able to uninstall IE8 without first uninstalling Vista SP2?
The question was prompted by a limitation present in Windows XP; on XPSP2, if you first installed IE8, then installed XPSP3, you would first have to uninstall SP3 in order to uninstall IE8.
I'm happy to report that this uninstall dance isn't required for Windows Vista and Windows Server 2008. On those platforms, we use a different installation technology called Component Based Servicing (CBS). CBS allows us to install and uninstall IE8 independently of the operating system service pack.
Of course, we hope you have no reason to ever want to uninstall IE8, and I hope that anyone contemplating an uninstall will check out my Troubleshooting IE tips first!
PS: To answer some of the questions that folks had on this post:
1> No, you are not required to install IE8 in order to to install Vista SP2.2> No, Vista SP2 does not itself include IE8. If you have Vista SP1 with IE7 and install Vista SP2, you will still have IE7 until you specifically install IE8.
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How's that possible? It doesn't make sence... If you have SP2 why can't you use the ie8?
Since both appeared almost at the same time...
Diogo: How is *what* possible?
As noted in the post, you can use IE8 on Vista SP2 or XP SP2.
If you're asking "Why didn't Vista SP2 *include* IE8" the answer is that Windows Service Packs do not include new browser versions. It is up to the customer to decide whether they want to upgrade their browser, and some customers wish to install service packs and browser upgrades at different times.