What causes our Acer desk top to keep saying at top of screen - not responding -

PatriciaH
PatriciaH Member Posts: 1 New User

Hello, have a desk top Acer PC.  A few years old now.    Is very slow at times.    Can work OK but often says  - not responding - at top of screen when we bring up various web-sites.  Also, will often cut out and says  - ending, etc.

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