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Did the problems start around the time you removed Kaspersky Pure 2.0?

The first one of these links is just in case you need to reinstall Kaspersky to get rid of it, but I don't think it will be necessary. This is how Kaspersky recommends removing the Pure 2.0:

This next link is the link to the Kaspersky removal tool. Hopefully, this will help you get rid of the any remaining elements of Kaspersky that could be causing problems:

Find the correct installer for your version of Windows, download the program and install it. Follow the instructions on the link to remvove Kaspersky Pure 2.0.

Please run the removal tool