I clean installed a Windows 8 32bit upgrade onto an Aspire 7520 (GeForce 7000M graphics) previously running Vista 32.
The graphics driver has been replaced by a generic Microsoft driver which works for simple use but has limited resolution (1024 * 768) and cannot properly show video.
Device manager indicated that there were 4 devices missing drivers. I cured two by downloading the Ricoh card reader driver (v 6.10.01.03) for Windows 7/32 from Acer and another by downloading the AMT_ENE driver also from Acer for Win 7/32.
The remaining dveice is shown as a 'coprocessor' so I expected to fix that by downloading the Win7/32 x86 graphics drivers from Acer site. I have tried several versions which load ok and display at full resoultion on the desktop BUT lock up on the new Start screen - the background shows, the apps disappear after a few seconds and task manager shows Windows explorer burning 50% cpu. The device manager still shows the coprocessor as not having a driver, though the display adapter does show Nvidia driver installed not Microsoft. The only fix is to roll back the graphics display adapter driver to Microsoft generic.
I also tried to load the latest Nvdia chipset drivers from Acer for MCP67 chipset Win7/32 but the installer never completes cleanly.
Any advice welcome. According to Piriform Speccy the Chipset is MCP67M, Nforce 560, Motherboard (bios?) v 1.09
