I have just done this with my Acer Aspire laptop and when you first have it you are prompted to make 2 restore DVD's and when you do it erases the hidden partition so ask the owner if they have the disc's prompted to make when first used.
Huawei P10 review
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New iPad, iPhone SE & Red iPhone 7 on sale now
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.