Hi there

As above Windows 8 or 8.1 doesn't have Cortana,this is only on W10 and switching to W10 depends on what HW you have,I went with W10 for few days and I'm back with W7 and I'm happy camper again,no problems with drivers

Wireless mouses are pain,I don't use it on my PC or laptop,previously I've owned Logitech wireless which has work,but still I moved to the wired mouse and tried in past few and which is best really depends on personal preference,I owning Logitech G502 Proteus core,I went with this mouse as I need to switch DPi on fly(my DPi settings for most of the 3D apps is around 4500-5200DPi.for many people is too fast,but for me its just perfect),have multiple buttons and I like if mouses are heavier(heavier mouse you will make with putting there weights),I hate light mouse,this is my personal preference on mouse front

Microsoft support,tell me about this...

This error A pointer device reported a bad angular physical range is widely reported on W8 and people seems struggling with some wireless pads,mouses etc,I just think this down to the W8,I saw that error too on W10,on W7 I didn't saw this,fix for that,I know few people tried older drivers for earlier Windows,can you try older W7 drivers ?

I would get good mouse pad,in some SW like in Logitech you can adjust yours mouse to the surface like mouse pad etc.due this I went with Logitech,yes I tried too Razer mouses and if they worth,hard to say ... You need to try,but in my case I don't like them

I still think W8 or W8.1 is source of those problems,I never have any issues with the mouse drivers on W7,on W10 I tried few drivers for old gaming mouse(Saitek) and they worked out of box and no problems,tried there few other bits and pieces and everything has worked,although with older HW there has been issues,but really depends,most of the apps works which I use and switching has been painless,I went back to W7 as I like W7,but I will be switching to W10 end of the year,when I will be building new PC

Hope this helps and good luck there

Thanks,Jura