[URL] It sounds like you need to install the Chipset drivers which must be installed first before anything else. It not installed first, other drivers will not install properly. Make a list of your Hardware Device Manager to check what hardware you actually have. You need to choose the correct ones for your configuration. Some drivers listed might be for hardware you don't have.
Please give me the link for Dell Inspiron 15 R 5537 Drivers windows 7 64 bits 1)PCI Simple Communications Controller 2)USB2.0-CRW 3)Video Contoller
Dell Inspiron 15 R 5537 Drivers windows 7 64 bits