Microsoft on Sept. 21 denied claims by hard drive industry executives and analysts that the world’s largest software company isn’t providing optimized drivers for the new hybrid drives about to come into the market. “Microsoft certainly does provide drivers for hybrid hard drives in Vista,” Matt Ayers, program manager in the Windows Client Performance group for Microsoft told eWEEK. “They’ve been in there all along, and they work with any hard drive. I don’t quite understand the issue here. And about ‘optimized’ drivers – we never send out any drivers that aren’t optimized,” Ayers said. In addition, Microsoft has started a ‘downgrade-to-XP’ program for its OEM partners.