Most organizations should be planning and testing Windows 7 this year, and most
organizations should try to eliminate Windows XP by the end of 2012, according to
Gartner, Inc. Gartner analysts said organizations need to decide when to begin their
migration to Windows 7, set a target date to have Windows XP out, and decide whether
to deploy Windows 7 to all PCs, only to new PCs, or to a mix.
“In various Gartner polls and surveys, 80 percent of respondents report skipping
Windows Vista. With Windows XP getting older and Windows 8 nowhere in sight, organizations
need to be planning their migrations to Windows 7,” said Michael Silver, vice
president and distinguished analyst at Gartner. “Windows 7 has been getting
positive reviews, and many clients report that they have plans to start their production
deployments, but there are some that are still undecided about when to start and
how quickly to do the migration.”
Gartner believes that organizations need to get Windows XP out before Microsoft
ends support for it in April 2014, and if possible, they should eliminate it by
the end of 2012 when new versions of many applications are not expected to support
XP, and independent software vendors (ISVs) will increasingly eliminate XP support.
Once a target end date has been set, the approach to deployment must be decided.
This could take place all at once, in a “forklift” project, or over
time, through attrition, as they replace their PC hardware.
“Organizations wanting to do as much of the migration as possible though PC
refresh or attrition, should begin by deciding on a start date,” said Steve
Kleynhans, research vice president at Gartner. “These organizations should
take into account when their ISVs will provide sufficient Windows 7 support for
their applications and when they will have enough time to test applications, build
images and pilot Windows 7. This will give them their start date.”
Taking the attrition approach will immediately identify the time scale for the project.
Organizations should consider their PC refresh rate and their target end date in
order to determine how many PCs can be moved to Windows 7 by attrition. However,
based on the typical PC refresh rate, many organizations will not be able to get
Windows XP out by their target end date by moving to Windows 7 by attrition alone.
To determine the length of the migration when using the forklift approach, organizations
need to work backward from their target end date to find the latest date they can
begin the actual deployment, and continue working backward to understand the latest
starting dates for piloting and testing. Most organizations need 12 to 18 months
for planning, testing and piloting.
In both scenarios, the length of time for the actual migration should take into
consideration the cost of supporting an environment with multiple versions of Windows,
as well as the cost to deploy a new operating system to every user — which, for
organizations without Software Assurance on Windows, would also include the cost
of buying additional Windows upgrade licenses.
Additional information is available in the report “Creating a Timeline for
Deploying Windows 7 and Eliminating Windows XP” which is available on the
Gartner website at www.gartner.com/resId=1321213.