my friends kindly help me, some of my fujitsu keyboard keys stopped functioning

hi my friends... :confused:

please help me regarding some keyboard keys of my laptop is not functioning.
the
Fn, shift, one of the enter key,
number six, eight, and nine.

thank you for reading my friend, i really need your kind heart, help me.. :(

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 32 bit
Processor: Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz, x64 Family 6 Model 42 Stepping 7
Processor Count: 4
RAM: 2986 Mb
Graphics Card: Intel(R) HD Graphics Family, 1301 Mb
Hard Drives: C: Total - 249898 MB, Free - 188333 MB; D: Total - 226938 MB, Free - 217195 MB;
Motherboard: FUJITSU, FJNBB10
Antivirus: Microsoft Security Essentials, Updated and Enabled