سلام
این مراحل رو اجرا کنید تا ویندوز 7 سرویس پک 1 رو نصب کنه.
To manually install SP1 from Windows Update:

  • Select the Start button > All programs > Windows Update.
  • In the left pane, select Check for updates.
  • If any important updates are found, select the link to view available updates. ...
  • Select Install updates. ...
  • Follow the instructions to install SP1.