Microsoft Teams login issues

Now and then Microsoft Teams freaks out and refused to login with correct username and password. It can happen during the first login, or after a user has been signed in and working in Teams for quite some time. It normally goes into a loop asking to log in again and again with below or similar error message.

Microsoft Teams login error 
We're sorry - we've run into an issue
Try again
If that doesn't work, try signing out and back in.

Secure wipe hard drive from Windows 10 installation media

Acer W510

I had an old Acer all-in-one with integrated 64GB flash drive that I needed to wipe and dispose of. I normally would use Darik's Boot and Nuke CD for that purpose. Unfortunately, this laptop/tablet was extremely picky with bootable media. Even with Secure Boot disabled, I only managed to boot it from 32bit Windows 10 installation media. All other bootable recovery/diagnostics CDs and USBs I tried (both BIOS and UEFI) were failing to even appear on Acer F12 boot menu.

Luckily it's possible to wipe the hard drive from Windows 10 installation media.

Skype for Business couldn't find a Skype for Business server...


Skype for Business fails to sign in for Office / Microsoft 365 customer.

Skype for Business error

Can't sign in to Skype for Business
Skype for Business couldn't find a Skype for Business Server for <>. There might be an issue with the Domain Name System (DNS) configuration for your domain. See KB2566790 for details and contact your system admin.


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