My computer is supposed to be protected by Shield Deluxe anti-virus etc. But now it is acting really slow and doing weird things. I contacted Shield Deluxe and they referred me to IYogi Support. The support person spent a lot of time checking my computer and told me it was severely infected with malware and in danger of crashing. He asked for control of my computer and showed me numerous instances of malware present. He offered to install cleaning software, valid for two years which would thoroughly clean my computer registery. The cost was $440.00 for the two years. During the long discussion he explained if I took it to a technician it would most likely cost me more than double that amount. Can anyone comment, give me insight or otherwise inform me in any way about how to handle the situation I have described? Is anyone familiar with IYogi? How do I know this is legitimate? According to a survey Shield Deluxe is supposed to be one of the best in virus protection. I would appreciate any comments anyone can offer.