I need Acer Aspire 3500 Windows 7 drivers

My old Acer Aspire 3500 Windows 7 64 bit and has an Intel Celeron 925 processor 1.5 GHz, 4 GB RAM and 500 GB HDD was infected by a Win32 Trojan virus. It deleted some files and drivers and made my laptop virtually impossible to use. Where can I download drivers for Aspire 3500?
