How Do You Know You have a Corrupt Operating System?
When a corrupt Operating System occurs do you reinstall the OS or do you use your backup?
How do you diagnose a corrupt Operating System?
The symptoms are very noticeable:
What are the causes?
What happens at this time of year are power failures, unexpected power failures from storms, some are not even close to you.
How do you know that it is time to either wipe the partition the OS (Operating System) is on and install a fresh copy, or put the image (you made?) over the corrupt Operating System?
But sometimes it catches you by surprise and it just happens.
That is when the registry and the open files on the hard drive partition become corrupt.
When the registry becomes corrupt is when you start getting services that fail to start when the OS starts, that is if you didn't turn off a service that the one that is failing to start is dependent on.
When the service file becomes corrupt you will also get a failure of the service starting.
My Domain controller is on a surge suppressor but not a UPS (it died a couple of years ago and I didn't replace it, power outages here are very rare).
While we were gone for a day the power went out, the server is set to not restart on power failure.
A couple of days later the power went off again, that must have been one too many power outages because all the sudden the server was having service failures, the DNS wouldn't translate computer names in to IP addresses, sometimes the Gateway IP didn't show up in the DHCP settings - corrupt Operating System.
My remote control program would not start, and the Virtual Drive program would lock up the computer.
I considered reinstalling the OS and then rebuilding the Domain, the image I had was two years old (unless something changes I don't make images of a Domain or server OS) but decided to use the image to clean up the partition and get the server operational again.
Once the image was back on the server I ran the Auto Update for all the latest service packs and proceeded to re-establish the Domain the way it was before the drive became corrupt.
I also added another 1.5 TB hard drive to the system and changed where the backup would go, this gives me 4.5 TB of drive storage now.
And now it starts up like it used to and doesn't take forever for the desktop to load.
Your recovery will only be as good as your last backup! <-- look familiar?
Now I have to find some stuff to fill up that 4.5 TB of storage... :)