Windows XP Service Pack 1a (SP1a)

Used Windows XP Service Pack 1a (SP1a) for Windows?

Developer’s Description

Update your copy of Windows XP with this inclusive service pack.

If you are not running Windows XP SP1, install SP1a for security and reliability updates to the Windows XP family of operating systems. There is no benefit to installing SP1a if you are already running Windows XP SP1. We do not recommend that you install SP1a if you are already running SP1. Windows XP SP1a is almost identical to Windows XP SP1 except that the Microsoft virtual machine (VM) is removed in SP1a.

Windows XP Service Pack 1a (SP1a)

Used Windows XP Service Pack 1a (SP1a) for Windows?

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Full Specifications

GENERAL

Release: September 9, 2002

Latest update: August 16, 2018

Version: 1a

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows XP
Windows 10

Additional Requirements: None

POPULARITY

Total Downloads: 3,016,761

Downloads Last Week: 6

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Descargar Windows XP Service Pack 1a (SP1a)

Last Updated

User Reviews

3.1/5

366 User Votes

No longer works, but all you need is SP2 anyway
michael-kropatOctober 22, 2013
Pros
Once upon a time this worked.
Cons
Workaround: XP SP2 includes SP1, so get that instead. Then install SP3. Supposedly a SP1 offline installer did exist, so if you really want it you may be able to locate it. Reference: http://superuser.com/questions/347245/network-offline-install-of-windows-xp-sp1
Summary
Microsoft doesn't allow this SP access
klommlerJanuary 29, 2013
Pros
I don't have any pro accept that the installer download fine and didn't crash my machine when I tried to run it.
Cons
When I tried to run it the installer notified me that windows XP could not access Windows Update. The installer was stopped dead in its tracks.
Summary
As expected; no problems.
RM95618May 26, 2012
Pros
Installed with no issues.
Cons
None; clean install.
Summary
Needed a new copy;this filled the gap.
Windows XP SP1
Mert98February 25, 2012
Pros
Easy download Fast installation Good for old computers
Cons
Some security issues, but that's not that a big problem at all, unless if you use the default browser of it. (IE6 SP1)
Summary
Thank you so much!!! I really needed this for a old computer which couldn't handle Windows XP SP3.
Basically stinks.
LostValleyJanuary 6, 2012
Pros
can't think of any.
Cons
M$not link in this is no longer there.
Summary
Thanks cnet for making this so easy to find
RathionJanuary 28, 2011
Pros
This is an XP OS service pack. It's required for a installing a number of things. My review is really for cnet. You guys rock
Cons
There are none
Summary
Downloaded easily and installed perfectly.
Bronson137December 2, 2010
Pros
Works well
Cons
Nothing that did not install.
Summary
Great download for XP,
Necessary for "legacy" XP upgrade/update...
jakenewbieJuly 21, 2010
Pros
Downloads & installs easily and rather quickly.
Cons
No longer supported, so must upgrade to at least SP2, which should be done anyway. Must have this service pack before you can upgrade to either this or SP3. This is not necessarily a negative thing!
Summary
Upgrading XP gradually by starting with this SP1a, then going to SP2 and finally to SP3 is probably the best approach when dealing with a system that has none. Not many out there, but there are enough that this should be remembered. This operating system may be the best so far from Microsoft and they know it, even though they may not admit to it directly. Each service pack dealt with flaws encountered but also added a lot of innovations and improvements that make this such a user-friendly and professional powerhouse. It will be around for a long time, and that is a very good thing; keep it updated and clean and enjoy using it until it can't be used anymore...
good to start with
enginior1June 18, 2010
Pros
be ready for a very quick downloader without going to the update site
Cons
no internet no go make sure product key has not been tampered with otherwise won't work
Summary
does the job but registering the cd-key straight away and going to the update site is always more relieble
Haven't seen a difference in the way my computer acts
kpscarb032361November 30, 2008
Pros
Haven't seen a difference in the way my computer acts
Cons
Haven't seen a difference in the way my computer acts
Summary
Haven't seen a difference in the way my computer acts