I have Java Development Kit. What should I do/where should I go to re-install everthing that is Java-related? (And will this affect my Java-work for school?)
That I don't know. I have no idea what your involvement with JDK is and what packages you will need to re-install. You actually should know it since apparently you were the one who installed it.
HERE is the guide on how to install both JDK and JRE.
As far as I know, all applications are using JRE (runtime environment) and that's what I'd recommend re-installing.
This is what I would've uninstall on my PC:
- Have you tried creating a new Skype account and logging in using it?
Also, try the following steps since Skype works in Safe Mode) even though it may take some time:
- Go into Safe Mode with Networking and look at which services (NON-MICROSOFT ONLY) are running and write them down (Start -> Run -> msconfig -> Services).
- Restart in normal mode
- Click start then run and type msconfig
- In msconfig you can disable the services one by one.
- Just check the services that you have wrote down and restart the computer.
- Your computer will restart loading only those services (the same ones Safe Mode with Networking uses)
- Check if the issue persists.