Creating restore points can often be helpful before installing and removing programs in case something happens and the program fails to install correctly or is removed incorrectly.
true
Create a restore point.
It is not at all important to do a defrag if you just installed an operating system. It is usefull when you have removed software or just before installing new software.
System Restore.
The first thing I would do is to do a system restore to a time before installing the software. Most of the time that will fix it. You could try uninstalling the software, but that won't always fix it.
System Restore
You can find disaster recovery software where you can restore your computers to the last day before the virus hits at free-backup.info/handle-disaster-recovery-windows-xps-system-restore.html. Another good site is www.Symantec.com/backup_recovery
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Defragging the hard drive
before an operating system update and before installing a new driver.
yes all hard drives must be reformatted before installing an operating system.
Understand the requirements of the software before installing. Also make sure there is some support for the software.
It is a different software that has most of the windows software's before it incorporated into it like windows 2000, windows 98, and windows 95. Windows 7 has the same thing too.