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Norton AntiVirus Basic - Slow computer performance

I hope someone can help, I just got Norton Antivirus Basic. Immediately after downloading to my PC (Windows 7) slowed down to a crawl. I have to wait after every click of the mouse for it to responded. I use Firefox and IE. If I open another tab the wait is longer, 3 tabs open, still longer, with 4 open it will freeze and I have to close the browser via Task Manager.

Browsers have the newest versions, I have all Windows Updated current, I clear temp and history often. I optimize, I ran Norton Autofix.

This is crazy, does anyone have any suggestions. Thanks, Karen

[Admin Edit: Clarified Subject]

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Re: Norton AntiVirus Basic - Slow computer performance

Hello Karen

Welcome to the Norton Community Forum.

Did you thoroughly remove the previous security program by using the removal tool from that security program? After doing that, restart your computer.

After first installing Norton Security, Norton has a lot of background work to do. Did you run Live Update after installing the product? The latest version is 22.14;0;54. If possible, let the computer go into idle mode so that Norton can do some of that background work .It also has to do a full system scan. Please go over all of the settings and make the program the way you want it.

Have a Good Night and

Thanks.

Success always occurs in private and failure in full view. Windows 7 Pro 64 bit NSBU 22.17.0.183 Core Firmware 282 I E 11 Chrome latest version.

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