A lot of brilliant free content and techniques here
Lots of it is universal - I work for a v big organisation that has very specific training for managers, and I see a lot of overlap.
Essentials
Have regular 1:1 meetings with your direct reports (weekly)
Feedback - start with positive (but genuine!) and leave it a good length of time before introducing negative (to build trust).
Specifics for goals and requirements - lose any woolly teminology - so they don't have any wriggle room.
For instance for your non Outlook user say "You need to attend meetings you are scheduled for on time, and to apologise in person if you are late or cannot attend. You must also use the Outlook system as everyone else uses it, and the company is not going to introduce a new system just for you." Then follow up on this in EVERY 1:1 with this person (and check with others that they are turning up on time for meetings)
Know your team (through 1:1's etc).
Address issues directly - and privately - with those involved, and hand them responsibility for changing. If someone is constantly negative, you can say "I hear that you seem to have lots of complaints (give a few exact examples) and you are constantly talking to the team about them. This causes bad feeling and a negative atmosphere. How are you going to change this?" and leave it in their lap. Solutions they come up with, rather than ones imposed by you, will be more successful (get clever and they will come up with the solutions you want to see implemented! Also they might come up with something better than you require!)
My current team are very motivated and positive (not just due to me! to their previous manager as well)! I can see a team across the floor that have huge issues at the moment. I think the key differences are that the happy team have
Good communication - v reg meetings
Very specific goals - and reg appraisals
Can see their successes immediately
(results are apparent quickly when they do well)
Everyone perceives that they are all treated fairly
(the perceives part is the most important here!)
The poorly performing team have over the last few years
Had nearly zero communication (no meetings)
No goals (one team member had her goals for the previous year set during her final appraisal!)
Had a manager who visibly didn't give a shite - left early all the time, left people in the doo doo, called in sick all the time
No praise for good performance
Perception that some of the team were not pulling their weight (true, and due to the mgr not ever pulling the person on the laziness, it became endemic)
An epic post but I hope it helps!