By clean I would assume you mean formatted (Erased). Upgrades could mean a larger processor, More ram, Faster Video card, or an extra media drive. A computer can be upgraded without formatting without losing any data. And software can be installed anytime.
software
software
software
example of desktop publisher software are fliers,invitations,magazine,covers
"The Apple web site has the latest software updates for Mac and other Apple equipment. The site has the Mac Software Updates divided into categories including Desktop Computers, Portable Computers, Mac OS & Software, and more to help you find the upgrade you are looking for."
Clean My Desktop software is included in the Windows XP software and is commonly referred to as the Desktop Cleanup Wizard. The price for this piece of software is already included in the cost of the Windows XP installation software.
There are a couple of online websites that sell desktop sharing software. The best website would be Webex. They have some desktop sharing software at an affordable price.
The PC system used by Blackberry desktop applications is Blackberry Desktop Software 7.1. The Mac system used by Blackberry desktop applications is Blackberry Desktop Software 2.0 for Mac.
One can find desktop management software through the internet. Someone can go look up a website or go in a trusted business website and find a desktop management software.
Desktop software is highly regarded probably because, unlike web-based software, a web browser does not need to be opened, in order to use the software.
desktop publishing software
Pagemaker