Lost materials after a system restore

[cve60069]

Hello

I am using Windows 7 and am in the process of removing my PC off the internet and I have started to remove some Windows Services.  In doing so, I managed to lose my sound so I did a system restore.  I still have lost my sound but I also seem to have lost my Revit materials (see jpg).  I am not sure if this was due to the system restore or the fact that I stopped some services.

Do I need to reload Revit to get the Libraries back?

Regards

[cve60069]

I am using Revit 2014

[cve60069]

Hello

I have moved on and located my materials libraries by doing a *.adsklid search. When I go to locate the libraries and select, I get an error message (see jpg).  I think I may be close to a solution but am now well and truly stuck.

Any clues please.

[MostafaElashmawy]

From Control panel>> programs and features, select Revit 2014 material libraries and repair.