My acer aspire M1201 is always hang

So You PC hangs when ever you open any application.
Try this:
1. Turn off the PC
2. Tap F8 while booting the PC go to the Advanced Boot Option winodw
3. using your up & dow arrow chose (Safe Mode With Networking) hit enter
4. sign in as the ADMIN (if available) or you profile
5. Open the internet ( IE, Firefox)
6. go to www.malwarebytes.org
7. Download & Update Malwarebytes and run a Full scan
8. Remove what is found and reboot into normal mode
Hope this help
Good luck
DR Geek MD