Virus scan was performed this morning around 4:00 Nothing detected.
Now it’s telling me that RAM is critically low
What is telling you that? What program did you use for scanning?
The virus looks just like a Windows alert. If you clicked on something with it after the scan - there you go...
I'm far from the expert, but degragging might be in order, then - as suggested above - run Crap Cleaner....but be aware doing that will clear all your passwords and log you out of everplace you're currently logged into.
You have what is called a Fake Alert or Fake Anti-Virus. I am 99.9% sure of this. I deal with this on a daily basis at my shop. Just sayin.
Ram or virtual memory, sounds more like you have a lot of things open. How much ram do you have? Also have you been getting blue screens? Do a ctl alt delete open the task manager go to process and sort by the most memory being used. Is the amount stable or slowly increasing, take a few min. You could be having a memory leak
You might try going into defrag to check if that is true. You probably don't want to actually defrag it until the problem is resolved, but check if the hard drive is almost full. If so, then maybe you need to remove some of the videos or other large files, because it won't work properly if the hard drive is nearly full. Save the hard files to a read/write CD if you can, or another memory device, and then delete them from the hard drive to make more room. You want to avoid running the computer with the hard drive nearly full.
Malwarebytes!
Now it’s telling me that RAM is critically low
Most virus scanners do not detect malware. You need to get Malwarebites and AdAware (from Lavasoft) for free and run them in Safe Mode.
The key to whether you have a bad hard drive or malware is the RAM warning. The malware on your machine is taking up all your memory.
Same virus I got, it tells a LOT of lies.
Your hardware is fine, it’s just all the software that’s hosed up.
A complete reload from a backup image or complete reinstall will fix everything.