I want to reinstall windows 7 OS on my HCL ME laptop series 1045 but I dont have the driver CD. I fear that if I install the windows again then my LAN network may not work and I may not be able to go on internet. Pls help. The details of my laptop are- ACPI*86 basedPC, Disc driver ST9320325 AS ATA device, Realtek RTL 8723 AE wireless LAN 802.11n PCI-E NIC, Thanks and regards.