If you can't open Internet Explorer, if it freezes, or if it opens briefly and then closes, the problem might be caused by low memory or damaged system files. Try this:
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Open Internet Explorer and select Tools > Internet options.
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Select the Advanced tab, and then select Reset.
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In the Reset Internet Explorer settings dialog box, select Reset.
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When Internet Explorer finishes applying the default settings, select Close > OK.
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Restart your PC to apply the changes.