Help needed with error

Arduino: 1.5.5-r2 (Windows 8), Board: "Arduino Uno"

C:\Program Files (x86)\Arduino\hardware\tools\avr\bin\avr-ar: unable to rename 'C:\Users\admin\AppData\Local\Temp\build1608666779817263271.tmp/core.a'; reason: Permission denied

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What should i do in these error getting headache tried over 25 times

Split from an unrelated topic

What should i do in these error getting headache tried over 25 times

Start by posting your code using code tags when you do

It may be time to update from the V1.5.5-r2 BETA release. That was released on January 10th, 2014 so there have been 6.5 years of development since then.