While my computer consultant was out of town during the Christmas holiday, I have made several attempts on my own to understand why my computer would hard-freeze at irregular intervals. During the Christmas holiday, I would start each session with a scan, based on the suspicion that the problem could be the result of a virus or other malware. Whenever I selected the Full Scan option of the Microsoft Malicious Software Removal Tool (MRT), the system would scan all umpteen million files on my computer in a little more than an hour. After that, the computer would not freeze for the remainder of the session.
Today, my computer has been up for approximately ten hours—a record!
In any case, I will not rely on this little trick, which may in fact be a fluke. I have two computers, both over five years old. My consultant will copy the hard drive on my existing computer, take the other computer to his lab, and install Windows 10. (I have been running Windows 7.) My alternate computer will have all my files (except for changes made in the next few days), and a new operating system. When he returns it, it will become my main computer, which will be fine with me as it has more storage and memory.
With luck, I will be able to resume my blog postings using my MRT trick as described above.