Major computer lag after closing game

Every time i exit out of the of bf2PR I get major computer lag, browser takes forever to load content, programs lock up or will take forever to open up. resulting in a computer reboot every time. Any ideas?

Computer:
Computer Type ACPI x64-based PC
Operating System Microsoft Windows 8.1
OS Service Pack -

DirectX DirectX 11.2
Computer Name
User Name
Logon Domain
Date / Time 2014-06-27 / 02:43

Motherboard:
CPU Type QuadCore Intel Core i7-4820K, 3700 MHz (37 x 100)

Motherboard Name Asus Sabertooth X79 (1 PCI, 2 PCI-E x1, 3 PCI-E x16, 8 DDR3 DIMM, Audio, Gigabit LAN, IEEE-1394)

Motherboard Chipset Intel Patsburg X79, Intel Ivy Bridge-E

System Memory 16323 MB (DDR3-1333 DDR3 SDRAM)

DIMM-B1: G Skill TridentX F3-2400C10-8GTX 8 GB DDR3-1333 DDR3 SDRAM (10-9-9-24 @ 666 MHz) (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-20 @ 533 MHz) (6-6-6-17 @ 457 MHz) (5-5-5-14 @ 380 MHz)

DIMM-D1: G Skill TridentX F3-2400C10-8GTX 8 GB DDR3-1333 DDR3 SDRAM (10-9-9-24 @ 666 MHz) (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-20 @ 533 MHz) (6-6-6-17 @ 457 MHz) (5-5-5-14 @ 380 MHz)

BIOS Type AMI (10/15/2013)
Communication Port Communications Port (COM1)

Display:
Video Adapter AMD Radeon R9 200 Series (3 GB)
Video Adapter AMD Radeon R9 200 Series (3 GB)
Video Adapter AMD Radeon R9 200 Series (3 GB)
Video Adapter AMD Radeon R9 200 Series (3 GB)
Video Adapter AMD Radeon R9 200 Series (3 GB)
Video Adapter AMD Radeon R9 200 Series (3 GB)
3D Accelerator AMD Radeon R9 280X (Tahiti)
Monitor Asus VH238 [23" LCD] (ACLMIZ104433)
Monitor Asus VS228 [22" LCD] (D6LMQS022546)
Monitor Asus VS228 [22" LCD] (D6LMQS022524)

Multimedia:
Audio Adapter ATI Radeon HDMI @ AMD Tahiti/New Zealand - High Definition Audio Controller
Audio Adapter Realtek ALC892 @ Intel Patsburg PCH - High Definition Audio Controller [C-1]

Storage:
IDE Controller Asmedia 106x SATA Controller
IDE Controller Intel(R) C600 Series Chipset SATA AHCI Controller
Storage Controller Marvell 91xx SATA 6G Controller
Storage Controller Microsoft Storage Spaces Controller
Storage Controller Virtual CloneDrive
Disk Drive Samsung SSD 840 EVO 500GB (500 GB, SATA-III)
Disk Drive WDC WD2000F9YZ-09N20L0 (2000 GB, 7200 RPM, SATA-III)
Optical Drive DTSOFT Virtual CdRom Device
Optical Drive ELBY CLONEDRIVE SCSI CdRom Device (Virtual CD-ROM)
Optical Drive TSSTcorp CDDVDW SH-224DB (DVD+R9:8x, DVD-R9:8x, DVD+RW:24x/8x, DVD-RW:24x/6x, DVD-RAM:5x, DVD-ROM:16x, CD:48x/24x/48x DVD+RW/DVD-RW/DVD-RAM)
SMART Hard Disks Status OK

Partitions:
C: (NTFS) 1862.7 GB (1256.7 GB free)
E: (NTFS) 465.6 GB (345.4 GB free)
Total Size 2328.3 GB (1602.1 GB free)

Input:
Keyboard HID Keyboard Device
Keyboard HID Keyboard Device
Keyboard HID Keyboard Device
Keyboard Razer Naga
Mouse HID-compliant mouse
Mouse Razer Naga