Greetings Acer community, I am here to give out my problem and seek for an answer. It might be solved soon with the method I'm currently preparing, but there is a chance that my solution could fail misarably.
I shall now explain:
I own an Acer Aspire MC605 and yesterday I decided to go on it to do some work, and I find an error message saying: Error: No boot disk has been detected or disk has failed.
I know if I just said that you would reply telling me the hard disk is no longer working, but that's not the case at all.
I turned off quiet boot and enabled CSM and all and I find on the startup that the hard disk is present and recognized by the computer but it isn't recognized to work for boot.
Next, I tried booting up the computer with a chamaleon-based bootloader I had on a pendrive. The windows NTFS partition(Which is the only one I have, I removed all other partitions and left it with a single 981GB partition) and this time I got a windows BCD error, the typical "Boot/BCD This file is corrupt)
The conclusion is that the EFI partition which holds the bootloader is not present on the disk for some odd reason. Why do I think the EFI partition is missing? For the simple reason that the chameleon bootloader doesn't display 2 NTFS partitions, since on chameleon bootloader the EFI partition doesn't display hidden as a boot option. Although it might only be a severe consequence BCD error. I will try and rebuild the BCD, I will keep informing.