What is after the first 1. 2. 3. 4. steps ?

Arduino Info USB/FTDI programmer Add libary Remove libary RF transmit / Recive 315 or 433 Mhz CD4051B - 8 port analog multiplexer 74hc595 - 8 port shift register - output 1-Wire ® Temperature (DS18B20) i2c bus + scanner i2c Barometric Pressure + Temp(BMP085) i2c LCD 1602 Display SingleBus Temperature + Humidity(DTH11 + DTH21 + DTH22)

Arduino remove a library

How do I delete / remove a library from the arduino environment?

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On Windows, it would be %USERPROFILE%\Documents\Arduino\libraries
on Linux directory would be ~/Documents/Arduino/libraries/.
on OSX directory would be ~/Documents/Arduino/libraries/.

Then move the selected Directory away - or delete it !!!
Close all instances of the software - When you run the software again - libraries are updated !!

Arduino.cc guide on Libraries