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My Asus R503U laptop was contaminated by Microsoft by an update, I think a .net update. The computer went into a continuous repair loop and will not answer any commands. I replaced the HDD with a new one and I noticed a difference in the connections, it has the SATA slots and a port (possibly power?) that the other did not. I installed it and powered up the computer. There seems to be a power on problem as the screen flashes Asus and then goes off. When it does come on, I placed the Windows 7 Pro disk in and it sounds like something is wrong as the disk is being scanned. I get a message to reset and select the proper device to boot from or insert the boot CD and press a key. Nothing happens. the machine appears to not recognize the CD and does not appear to be reading the new HDD. How can I fix this?
So, let me see if I can understand your question… If you have an update error, your previous hard-drive should be working, It just has a file corruption of some sort, I guess. Furthermore, all SATA connections are the same, the only change in the speed of data transmission, but the data and power connections are the same across the different versions, so, if you could upload pictures of the drive connections your are making?
Hi Go to bios Advanc boot Make the choice uefi to csm Go to security make secure boot disable Save And try to install windows.