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mac iar 2012

  1. S

    Macbook Air mid 2012 lags after Big Sur

    Install Big Sur with patch Mouse moves slowly, deep lags. I reset NVRAM and SMC and reinstall Catalina... Mouse moves slowly, deep lags. From internet recovery install Lion.. Mouse moves slowly...CPU load over 100% In all osX install mouse lags and performance low. Fan usage and CPU 100% But...
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