Hi dear You upgrade your windows 7 to Windows 10. During installation your all drivers not properly install that's why some applications not working. So just reinstall your windows 10 better first download then install. I hope your problem will solve Thanks
Thank you for your comment. I am still the thread starter. For some reasons, they did not like my original name.
I made a complete newstart with W10 from a DVD with an iso image. I suppose that is that what you meant.
Even four years ago - when I installed W7 from an iso - I had to read in these files (now missing) from a HP Driver Installation Disk. Under W10 this old W7 Installation disk is recognized, but not readable.
I have connected the Probook with an Ethernet cable - no problems with emails and Internet. But the Hardware Manager cannot find the new drivers for four applications. My old notes tell me, that the same problem occurrecd four years ago. Evidently the HP people do some special tricks that makes it difficult to find support outside their own proprietary zone.
Also, I need support for the HP hs 2340 HSPA+ Mobile Broadband. I searched their HP WEB Support sites, they offer only updates for 8.1 and lower, but not higher. For a business laptop not older than four years...