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Re: Dimension E520 Windows 7 will not boot

Installing a new OS will corrupt the Dell recovery partition, but it should not affect the Diagnostic partition.  Did you try it?

Do you get any beeps or any diagnostic error code (lights) on the front panel? 

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Dell Inspiron 15 - 5577 Laptop

Home Built Desktop PC with ASUS ROG Z170, i7 6700K CPU

Windows 10 64 bit Pro and Windows 10 Insider Program Beta Versions. SSD drives. Cakewalk by BandLab and Studio One 4.1 Recordng Studio Software.

Dell S2719dgf Monitor

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