So I don't know how to slove that.
My cumputer is DELL E6540
Processor
- 4th Generation Intel® Core™ up to i7 processors
Operating System
Windows® 7 Ultimate 64 bit
Memory1
- DDR3L SDRAM 1600MHz; 2 slots supporting up to 16GB
Chipset
- Mobile Intel® QM87 Express Chipset
Optional Intel® Rapid Start Technology2
Optional Intel® Smart Connect Technology3
Graphics Card
- Intel® Integrated HD Graphics 4600
Optional 128-bit Discrete Graphics with 2GB memory
Display
- 39.6cm (15.6) HD (1366x768) Anti-Glare LED
39.6cm (15.6) FHD (1920x1080) Anti-Glare LED
Hard Drive
- Standard 320GB Hard Disk Drive
Up to 1TB Solid State Hybrid drive
500GB FIPS Self-Encrypting Drive4
Solid State Drives up to 256GB Encrypted Solid State Drive
Dell Fast Response Free Fall Sensor and HDD Isolation (standard on the motherboard)
Optical Drive
- DVD-ROM, DVD+/-RW
Connectivity
- 10/100/1000 Gigabit Ethernet
Wireless LAN and WiMAX Options:
Intel® Centrino® Advanced-N 6235 + Bluetooth® 4.0
Intel® Centrino® Ultimate-N 6300
Dell Wireless 1506 (802.11g/n 1x1)