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L'iMac est la gamme d'ordinateurs tout-en-un de bureau d'Apple.

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Why is my computer turning itself off,and on again

My computer keeps turning off ,and then rebooting,I can,t get it to stay on for more tan a minute.idid update a couple of things yesterday,and it has been like this since then, can anyone help please

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Can you tell us your exact model it would help us help you!

Go to this web site: EveryMac - Lookup plug in your systems S/N it will report back your systems specs. Paste a link to the page it shows you so we can see what you have.

par

Please tell us about these updates and if they completed.

par

Thank you very much ,I followed Scott’s advise,and it solved my problem,I am delighted

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last time i had this issue, it was on my Desktop PC and my Processor had an intermittant failure.

however, there are plenty of other causes for this.

i would start with a simple repair function,

if repairing doesnt work, then run a factory reset on the device to wipe all data.

if not, then start looking into hardware issues. (Processor, Mobo, Thermal sensors, PSupply, etc)

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sheila wilson sera éternellement reconnaissant.
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