I use Windows Live Mail 2011 for my e-mail. After upgrading to Windows 10 it worked ok for a couple of days, then I got error message 0x80041161. Have tried some suggestions but not helped and on one occasion had error message 0x80070426. In the process of trying to solve this I have discovered that I cannot use task manager, cannot uninstall programs and the sync option with microsoft account is greyed out so I can't use that either. Have I got one problem possibly with permissions or have I got more?

[Original title: e-mail problem]