Note: Antivirus software can help protect your computer against
viruses and other security threats. In most cases, you shouldn't disable your
antivirus software. If you have to temporarily disable it to install other software, you should
re-enable it as soon as you're done. If you're connected to the Internet or a network while your
antivirus software is disabled, your computer is vulnerable to attacks.
6.I would suggest you to perform
System Update Readiness Tool and check if the problem persists. Please refer to the link for more details: