My new Win10 will shutdown properly, but hangs on reboot. Dunno quite what to do about it. The upgrade process seemed to go fine. I also had trouble installing

My new Win10 will shutdown properly, but hangs on reboot. Dunno quite what to do about it. The upgrade process seemed to go fine. I also had trouble installing Office 2010 after it was upgraded. Had to de-select all the components & install just Excel first, then do a 'Program Change' to add the rest of the components of the suite. Otherwise even in 'Win7' compatibility mode it would fail to find the .msi's it extracted to the temp folder. I really don't like the transparent taskbar, as the lettering's hard to read. I wish I could just turn off the 'Themes' service to get it back to Win98-style.