Software Problems
Recovering from Unstable Changes
An unstable operating system can be caused by:
Software Installations Driver installation and updates Software Updates Virus/Malware
Best practices recommend making one change to your computer at a time, it may seem like a lot of extra effort but if your change results in software problems you have a better chance of correcting it quickly. So if you are going to install antivirus and a new printer...do one, reboot; and then do the next.
System is Unstable and you know whyShutdown and boot into Safe Mode by pressing the F8 key.
In Safe Mode go to Control Panel - Add/Remove Programs - and uninstall the software
For driver related issues use Control Panel | System | Hardware tab | Device Manager Select the Properties of the device (right click) | Driver tab | Roll Back Driver
System is unstable, but you don't know whyThis could be caused by a virus or an update but you don't know exactly what, all you know is yesterday it was fine today it's not. In this case use System Restore from Safe ModeStart | Programs | Accessories | System Tools | System Restore | Restore to an earlier time.

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