how to change administrator password

windows key + R

type net user user_name new_password

remove your recycle bin as your self

Open Regedit by going to START - RUN and type Regedit and hit enter. Then you should navigate to following entry in registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\{645FF040-5081-101B-9F08-00AA002F954E} and delete it. This action should remove recycle bin from your desktop.

show folder option on tool bar ?

Start→ regedit →HKEY_CURRENT_USER→ software → Microsoft → windows→ Current version → explore → Advance → supper hidden = all way "0"
If there is "1" change into the "0"