We’re all familiar with how smartphones and tablets are eating into the PC market, but many people have speculated that the release of Windows 10 will breathe new life into the market and potentially make it grow for the first time in four years. According to IDC, however, this won’t be the case. While the research firm claims that Windows 10 will be a “significant contributor” to PC shipments, it believes that it still won’t be able to counteract the damage that the mobile market is doing.