I have some valued sketches on these older IDEs, should I make copies before I update?
First of all, Arduino is open source platform. Here are few steps for updating your arduino IDE:1. Plug in your Arduino to the computer with a USB Cable.2. Go to Start -> Control Panel -> System and Security -> Device Manager.3. You will see the connected Arduino board name. Right click on it and click on Update Drivers.4. A new window will show up click on Browse.5. Then Browse for the Arduino software in C: Program Files/Arduino/drivers.6. Click next to finish.If you want to know about how to install arduino IDE on windows then click here.
Code: [Select]error: unable to find a register to spill in class 'POINTER_REGS'
error: unable to find a register to spill in class 'POINTER_REGS'