Source :
support.dellDownload Dell Inspiron 17R 5721 Windows 7 32bit driversDell Inspiron 17R 5721 Application Dell Inspiron 17R 5721 Audio driverDell Inspiron 17R 5721 BIOS Dell Inspiron 17R 5721 Chipset driver- Intel Chipset Driver for win 7 32-bit download
- Intel Management Engine Interface Driver for win 7 32-bit download
- Realtek Card Reader Driver download
- Intel USB 3.0 eXtensible Host Controller Driver for win 7 32-bit download
Dell Inspiron 17R 5721 CPU - Intel Turbo Boost Technology Monitor Software for win 7 32bit download
Dell Inspiron 17R 5721 Input driver- Synaptics Touchpad driver for win 7 download
Dell Inspiron 17R 5721 Network, wireless drivers- Dell Wi-Fi + BT Driver for the Dell Wireless 1704 802.11b/g/n win 7 32 bit download
- Dell Wireless 1703 802.11b/g/n, BT4.0+HS driver download
- Intel Wireless Display application download
Dell Inspiron 17R 5721 Serial ATA Intel Rapid Storage Technology Driver for Intel Rapid Storage Technology Driver
downloadDell Inspiron 17R 5721 Video driverAMD Graphics Driver forAMD Radeon HD 7670M Graphics Driver
downloadIntel Graphics Driver for Intel HD 4000 Graphics Driver
download (by intel, not tested)