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Praskovya Alexeyeva
HiI have a lenovo 310-15isk which I have free upgraded to windows 10 a couple of years ago.I have created a 400gb partition (F) and am attempting to install windows 7 pro 64bit onto it.when the computer restarts I am getting the following error messagewindows boot manager'A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. If you have a Windows installation disc insert the disk and restart your computer. Click "repair your computer" and then choose a recovery tool. Otherwise, t
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