Sony Vaio VGN-Z11WN driver issue for NVIDIA graphics card

[buck1968]

Hi I've got an issue after uypgrading my Sony Vaio to Win10 64bit

The graphics card drivers aren't installing propoerly and the screen display is wrong. I keep getting error messages saying graphics card device driver not installed properly on reboots and devices showing as problematic in Device Manager. Pics attached:

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I've tried all sorts of different drivers and driver install programs but nothing seems to work. Can anyone help?

Thanks in advance 

[Sean_Mc]

Hi there,

Welcome to the Sony Community. 

I would recommend getting in touch with the Sony Support team here for further help.

Best wishes,

Sean 

[Blencogo]

The Z Series Vaios have switchable graphics which allows the choice of the Intel graphics or the NVidea graphics by the moving of the ‘Speed/Stamina’ switch.

This switching was facilitated by a single Hybrid NVidea/Intel driver. Support for this Hybrid Driver ended with Windows 7 and Sony never recommended updating Z Series Vaios above Win7, which now presents a problem.

In addition, later Z Series models used an AMD/Intel Hybrid Driver.

You will have to chose between the two and install the latest single driver - the latest Intel driver may be easier to source and install while in Stamina mode.

Which driver versions have you tried to install?