XPost: uk.comp.os.linux, alt.comp.microsoft.windows, alt.comp.os.windows-11   
   From: java@evij.com.invalid   
      
   On 2025-11-11 00:27, Java Jive wrote:   
   >   
   > However, as it has turned out, I've only been able to achieve partial   
   > backward compatibility in that all the 64-bit OSs can now be booted from   
   > D3, but not the 32-bit OS, I've not been able to find a way of booting   
   > Win 7 Pro 32-Bit from UEFI.  Further, I have not been able to find a way   
   > of booting *ANY* 32-Bit OS, not even a UEFI boot Win 8 Pro 32-Bit   
   > installation USB, when using UEFI on that particular PC (so probably   
   > none of the others either, because they're all identical or nearly so),   
   > so I suspect that this is a firmware limitation with this range of PCs.   
      
   Had another look at this today, and, as I suspected, it is indeed a   
   firmware limitation of these Dell Precision M6700/M6800 laptops:   
      
   https://www.google.com/search?q=boot+via+UEFI+32-bit+windows+on+   
   ell+Precision+M6700   
      
   "AI Overview   
      
   Booting a 32-bit version of Windows in UEFI mode on a Dell Precision   
   M6700 is not typically possible, because the system's UEFI firmware is   
   64-bit and does not support native 32-bit UEFI booting.  Most modern   
   systems, including the M6700, use a 64-bit UEFI, which requires a 64-bit   
   operating system to boot in UEFI mode."   
      
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