Rio Grande Valley residents joined many other people across the United States whose anti-virus software knocked out their computers.
The McAfee anti-virus software sent out an update to their subscribers at 3 a.m. Wednesday.
The update targeted some Windows operating files as a virus instead of a regular file causing their computers not to work properly.
Many residents and businesses were affected.
Action 4 News learned that the Geek Squad at Best Buy is offering FREE updates that will correct the problem.