During the virus cleaner it is common, computer performance become
sometimes slow. And any injects worms still active in behind or not is
unpredictable. It is recommending to optimize and speed up your computer after. As
per the number of virus files and their tight behavior depends whether you
restart the system or continue. It is good to restart the system after virus
cleaning procedure. After restarting computer, its one more time to optimize, no
restart needed. Then use your computer as normal.