Update 30 August 2012 – Quick Heal has officially stopped support for Quick Heal 10 (2009). You are recommended to upgrade to further version may be 2010 , 2011 or 2012 or even Quick Heal 2013.
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It ws done successfully and when i moved to quick update, the Downloading Updates failed after completing half.
Keep in mind that whatever setting you choose will require the computer to be left on for specified amount of time before VIPRE will check for an update.
For example, VIPRE will not check for updates if the computer is left on for 1 hour and the update interval is set to check every 2 hours.
Definitions may need to be manually downloaded and applied for it to work again.