Up until about 4 days ago each machine was running OK. I have run Malwarebytes Anti-Malware scans, SuperAnti-Spyware scans, ESET NOD32 Version 5 Anit-virus scans and Webroot Malware and Anti-virus scans on both machines and they come up clean.
I defrag the hard drives, keep the recycle bin empty and I have checked for disk errors on reboot.
The startup list only has 5 or 6 programs for each machine.
When I open a program - Adobe Photoshop CS5, Microsoft Office 2007, etc. it takes 1 minute or more for it to open. When I am using the programs all of the sudden both machines will freeze for between 1 and 3 minutes. Sometime they will recover but many times I need to reboot. It's just as if the machine is off doing something else. Many times when I do a mouse click especially right mouse clicks the circular hour glass starts rotating for ever and will not stop. I am not able to open Task Manager with Ctrl-Alt-Del, nothing happens. On rare occasions I will get a message saying that Task Manager can't open and to hit the Esc key and power cycle the machine. The only way to recover is to power cycle the machines.
I have not run sfc /scannow yet. That might be my next step. I am trying to do a Repair Install as the last resort.
I normally have automatic updates turned ON to install updates each morning at 3 a.m. as the machines run 24/7. Since both machines started acting the same pretty much at the same time I am thinking it might be a bad Windows update. This morning on one of the machines I was able to do a system restore back to November 11, 2011 and I have turned automatic updates OFF until I see if the machine is fixed. At some point in time I will have to turn the automatic updates back ON.
I have not run any memory tests, etc. because I think it would be very unlikely that both machines had memory issues at exactly the same time.
I use both of these machines for my work so it's important that they are operational. Any ideas the forum has would really be appreciated.
This post has been edited by artman: 28 November 2011 - 11:45 AM