new NVIDIA GTX 970 drivers on win 7 issue

[Prof]

Since upgrading my graphics driver for NVIDIA GTX 970 I can not get my system to acknowledge it. Says it is not digitally signed....install no issue, have installed from both cloud and NVIDIA website but my PC wont acknowledge it properly.

Worst is that I have lost the previous version (that worked fine 2014) don't have a backup from prior to install as PC has backed up over it! (my fault tried to reinstall back up only to find it had backed up pc instead!) any clues, advice, hints, offers....

as now my graphics card is useless.... obviously big hurdle is that no one want's to know win 7 issues (if you have an old win 10 disk to allow me a complete clean install and start from scratch...might help) lol :)

Version currently installed

30.0.14.7514

[AZAMOS]

Hello Prof,

Here's a compatible driver for your Windows 7 64-bit graphics card : https://www.nvidia.com/download/driverresults.aspx/78216/en-us/

You say “if you have an old win 10 disk to allow me a complete clean install and start from scratch...might help”: why an old version rather than the latest Win 10?