Posted February 17, 201213 yr I run Vista Home premium. Securiity Essentials is installed. At times a Defender window pops up requesting that Defender be turned off in order to proceed. When you click the off request or cancel the window it freezes and blocks additional work. If you click the close( X ) it eventually closes. The Defender Program is not listed as a installed program on my computer but there are indications it was there at one time. I am the origional owner. Help would be appreciated. Fred Continue reading...
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