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code 5

About this tag
The tag 'code 5' on WindowsForum.com covers a specific boot error encountered when trying to install Windows 7 from a DVD. Users report the message 'Cannot Boot From CD, Code 5' or 'CDROM cannot boot Code 5' on older PCs, even though the same DVD works on other machines and the PC can read the disc within an existing OS. Discussions explore workarounds such as running setup from within an earlier Windows version or booting into a DOS environment. Some users also encounter secondary installation issues like partition errors after resolving the code 5 problem. The content focuses on troubleshooting this legacy boot failure, particularly on systems that previously ran Vista or early Windows 7 betas.
  1. OldTimer

    Windows 7 Cannot Boot from CD, Code 5

    I'm sorry if this is a duplicate post, but honestly, I did Search for "Code 5" and found nothing. I have a HD on an eight year old desktop PC that had an early beta version of Win-7 on it. That old version has already expired. I wanted to boot up with my Windows 7 Ultimate DVD and just do an...
    • OldTimer
    • Thread
    • audio issues boot issues code 5 computer issues driver issues error graphics card installation legacy hardware old computer overlay install resolution setup program upgrade windows 7 windows dvd windows mail wireless card workaround
    • Replies: 4
    • Forum: Windows Upgrade and Installation
  2. lencuff

    Windows 7 Trouble Booting Windows 7 DVD: Need Help with DOS Environment Installation

    Due to getting a CODE 5 error when trying to boot from a known good DVD, is there any way I can boot the PC into a DOS type environment and then run setup from the DVD? PC reads the DVD fine but won't boot from it! I tried being crafty by booting from an XP disk, going to the recovery console...
  3. lencuff

    Windows 7 Install fails ?

    While trying to figure the Code 5 error I have on one PC, I'm trying to install on another. All goes fine until I get the partition/disk to choose. I've only got a single disk in and I have a 40Gb partition spare on it which I select. When I press Next I get this message - Setup was unable to...
  4. lencuff

    Windows 7 cdrom code 5

    Trying to install W7 on a PC running Vista. When I try to boot from the DVD I get the message CDROM cannot boot Code 5. Thinking the media must be bad I tried it on another PC and it boots fine. I tried a Vista DVD in the original (failing) PC and it boots fine? Any ideas please? Should have...
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