A user has downloaded and installed a browser add-on that causes the browser to hang. The PC
has very slow system response when rebooted. Which of the following should a technician do to
troubleshoot this problem?

A.
Run System Restore, update antivirus program, and run an antivirus scan.

B.
Remove all Internet temporary files, run an antivirus scan, and reboot using Last Known Good
Configuration.

C.
Remove all temporary files, turn off System Restore, update and run an antivirus scan.

D.
Run an antivirus scan, Run Disk Cleanup, and reboot into Safe Mode.

Explanation:

This might be thesignof a virus infecting the system. First, remove all temporaryInternetfiles on
your computer. Viruses are downloaded throughsoftwareor a webpage. And normally it resides in
Temporary Internet Files folder. Now turn off system restore because you don’twant to load a
previous state on thecomputer with the virus still lingering the digital wild. Run an antivirus
program to clean infected files.