Windows Update: Microsoft Releases Patch For Security Flaw

What you need to know about the latest Windows update.

Classed as a critical vulnerability, Microsoft's highest rated threat, the company said in a security bulletin "an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights."

The vulnerability affects Windows Vista, Windows 7, Windows 8 and 8.1 and Windows RT, according to a security bulletin posted by Microsoft.

Windows XP Support Expires

Apple Releases iOS Update

From Clippy to Cortana, Microsoft Tries to One-Up Competitors

If a user does not have automatic updates enabled, Microsoft allows for the patch to be downloaded by visiting the "affected software" section on its security page.

The fix comes an important time for Microsoft as the company prepares to roll out Windows 10 beginning on July 29.