I left my computer un-attended for several hours earlier and when I came back it had restarted and was at the windows login screen. (which is whatever could have been a windows update or something.) When I logged in though the avast free anti-virus that I have been running for a month now, its shields had been disabled so it was no longer protecting the computer. I re-enabled them and have restarted the computer since then and left it running to see if there has been an issue but haven't run into any. I have boot scanned the computer after re-enabling the shields and am in the process of full scanning as I type this on my other computer. Is there any reason for me to be worried? or should I be fine if both scans come back clean. Thank you to anyone that takes the time to respond to this.
The computer this happened on runs windows 10
avast free anti-virus is the program and I already registered it or licensed it.
If you have any questions for me just ask.