Hi fhumulani, first of all, what update did you install and why?
Second, can you post the specs of your PC, CPU-ram-motherboard-gpu, this will help with problem solving.
What folders are you trying to open? You can only connect to internet?, have you a virus and spyware/malware scanner installed?
If you can provide some more information on exactly what you installed and were doing on your PC , we can all have a better idea on trying to resolve problem!!!