By default when installing Windows, the update mode is always enabled, if you do not like receiving more updates from Microsoft, please see the following article detailing how to turn off the automatic update mode on Windows 7.
Step 1: Click Start -> Control Panel .
Step 2: Click Window Update .
Step 3: A dialog box appears -> click Change Setting .
Step 4: Change Seting window appears -> in the Important Update section select Never Check for Update (not recommended) .
Step 5: Click OK, you have the following results:
Good luck!