Home > Microsoft Service Pack, Microsoft Windows 7 > Windows 7 Service Pack 1 (SP1)

Windows 7 Service Pack 1 (SP1)


Windows 7 Service Pack 1 (SP1)

Windows 7 Service Pack 1 (SP1) is an important update that includes previously released security, performance, and stability updates for Windows 7.

Installing SP1 helps keepWindows 7 up to date. For more information, see What’s included in Windows 7 Service Pack 1 (SP1).

How to get SP1

The recommended (and easiest) way to get SP1 is to turn on automatic updating inWindows Update in Control Panel, and wait for Windows 7 to notify you that SP1 is ready to install. It takes about 30 minutes to install, and you’ll need to restart your computer about halfway through the installation.

To learn if Windows 7 SP1 is already installed

  • Click the Start button Picture of the Start button, right-click Computer, and then click Properties.If Service Pack 1 is listed under Windows edition, SP1 is already installed on your computer.

Disk space requirements

Make sure you have enough free disk space to install SP1 (even though much of that space will be reclaimed after the installation). If you need to create free disk space, go to Strategies for freeing disk space on the Windows website.

Installation method Estimated amount of free disk space required
Windows Update
  • x86-based (32-bit): 750 MB
  • x64-based (64-bit): 1050 MB
Downloading SP1 from the Microsoftwebsite
  • x86-based (32-bit): 4100 MB
  • x64-based (64-bit): 7400 MB
Installing SP1 using an installation DVD
  • x86-based (32-bit): 4100 MB
  • x64-based (64-bit): 7400 MB

Download Windows 7 SP1

If you have problems getting the service pack from Windows Update, you can download the SP1 installation package from the Microsoft Download Center, and then install SP1 manually.

  1. Go to the Windows 7 Service Pack 1 download webpage on the Microsoftwebsite, and then click Continue.
  2. Choose either the 32-bit (x86) or the 64-bit (x64) version of SP1 depending on whether you’re running the 32-bit or the 64-bit version of Windows 7, and then click Download.
    • To find out which version you’re running, click the Start button Picture of the Start button, right-click Computer, and then click Properties. Under System, next to System type, you can view the operating system.
  3. To install SP1 immediately, click Open or Run, and then follow the instructions on your screen. To install SP1 later, click Save and download the installation file to your computer. When you’re ready to install SP1, double-click the file.
  4. On the Install Windows 7 Service Pack 1 page, click Next.
  5. Follow the instructions on your screen. Your computer might restart during the installation.
  6. After installation is complete, log on to your computer at the Windows logon prompt. You might see a notification indicating whether the update was successful.
  7. If you disabled your antivirus software, enable it again.
  1. 16 March 2011 at 21:25

    Great detailed post on installing SP1! I definitely agree that Windows 7 users should install SP1, especially since future security updates or third party applications may come to depend on it. I also wrote a blog post on some pre-installation steps that users should take if they are interested in installing SP1 to their PC, here: http://bit.ly/hYmz3y

  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: