how can I stop my computer lagging after I installed windows 8?

Crowded at all at this level in talking about Windows 8, but from the well-known to not a few men and women who have troubles, like a person inquiring how can I cease my computer lagging following I set up windows 8?.
I have a windows xp and after I installed windows 8 professional my personal computer has been lagging really considerably.How can I get this to quit?

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Answers from someone who I identified on the web are as the next:

There are two guidelines with regard to betas one.) Never purchase iy it or in put in it. 2.) Will not get iy it or in mount it.

Thanks for pay a visit to Windows 8 with the issue how can I end my computer lagging after I mounted windows 8? i hope that up the folowing useful.