As you may know, Microsoft revealed Windows 7 SP1 details for the first time just a few days back and now we have Windows 7 SP1 beta in our hands. The SP1 for Windows 7 contains updates and minor usability fixes.

Installing Windows 7 SP1 is similar to Vista service packs. The time required to install this Service Pack largely depends on your system configuration and speed. Also note that one need to have installed Windows 7 RTM (build 7600) to install SP1. Here is how to install Windows 7 SP1:
# Run Windows 7 SP1 installer and click Next button to view the license agreement.

# Accept the license agreement and then click Install button to stat installing service pack contents.


# Your system will be rebooted twice during service pack installation. Once finished, you will see Windows 7 Service Pack 1 is now installed message.


# Click the close button to finish the installation procedure. You are done!
The Windows 7 SP1 might eat up approximately 3.3 GB of disk space on a x64 based PC. Learn more about Windows 7 SP1 beta disk space requirements here.
Here is more on System requitements for SP1

Here is the information for Windows 7 SP1
Windows 7 SP1 beta 7601.16562.100603-1800
MICROSOFT.WINDOWS.7.SP1.BETA-1.X86.WAVE0.RIP.DVD-MSFT
BUILD:7601.16562.100603-1800
FILE: windows6.1-KB976932-x86-INTL.exe
SIZE: 300,592,880 byte
SHA-1: DDF007FA19A372579F91AA6EEA4A3D84B7D50163
MD5: 251F3B55A1AEAE5BDFD07F1394520BBB
CRC: 779B6D7C
NOTE: Wave0: English, French, German, Japanese, Spanish.
Here is the Magnet Link Copy and Paste this link into a New browser and press Enter
magnet:?xt=urn:btih:3ae022efd7dc049afb03bf978c42d303efce5dbd