How can I get to 64bits mode without OS?

May 9, 2019 at 04:58:31
Specs: None
I just know how to get to safe mode in 32bits intel CPU, but I don't know how to get to 64bits mode in 64bits intel CPU with Assembly. Can you help me?

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#1
May 9, 2019 at 05:11:22
"but I don't know how to get to 64bits mode in 64bits intel CPU with Assembly"
If you are still talking about Safe mode.

Start your PC in safe mode in Windows 10
http://windows.microsoft.com/en-au/...
http://www.tomshardware.co.uk/faq/i...
7 ways to boot into Safe Mode in Windows 10
http://www.digitalcitizen.life/4-wa...
How to Fix a Computer That Won't Start in Safe Mode
https://www.lifewire.com/fix-a-comp...


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#2
May 9, 2019 at 09:41:52
Safe Mode is a feature of Windows. If you don't have Windows installed, there is no Safe Mode to get into. You also need to understand what a CPU is. Using the correct terminology is important. A CPU (Central Processing Unit) is another name for a Processor, such as this: Intel Processor. THIS is NOT a CPU.

64-bit processors can run either a 32-bit or 64-bit OS; 32-bit processors can only run a 32-bit OS.

Please post your complete system specs.

message edited by riider


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#3
May 11, 2019 at 02:56:28
The Intel Software Developer's Manuals ( https://software.intel.com/en-us/ar... ) tell you all that you need to know.

However, I'm not convinced that you have framed your question clearly. What exactly do you want to do, and why?


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#4
May 11, 2019 at 16:24:51
Access to Safe Mode is a key or combination of keys that you tap at start up. What key or keys depends on the brand of motherboard or the system manufacture. What ever edition of Windows you have is the version you get when you go into Safe Mode. If the 32bit is installed the you get 32bit, if 64bit i installed then you get 64bit. There is no other possibility unless you are really meaning something else entirely.

You have to be a little bit crazy to keep you from going insane.


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