My Panasonic ToughBook CF-74 HAS No Sound. Upgraded to Windows 7 Home Premium Service Pack 1 32-BIT

When the word 'Panasonic' appears on bootup, press F2 repeatedly.

http://www.panasonic.com/business/toughbook/computer-support-faqs-74.asp

start, Contol panel, manager, look too see if there is one item missing, then update. ( find the driver)

Anyone. But maybe Windows XP is not your best option. If you have drivers for windows Vista or 7, install it.

The following information comes from the Panasonic Website:

Recovery DVDs are available by mail for select Toughbook® products. Windows® XP back up service is only available to customers who purchased Panasonic computers with XP downgrade rights. Windows XP Backup Image and Windows 7 Recovery DVDs restore a PC to its original factory image. The standard Panasonic factory image includes the Windows operating system and all drivers/applications originally installed by Panasonic.

Most 2011 models of Panasonic Toughbook computers now have a Recovery partition on the hard drive instead of a Recovery DVD included in the laptop box. The only exceptions are the Toughbook F9, H2 and U1 Ultra which will continue to ship with a Windows 7 Recovery DVD. Besides restoring the computer to its original factory image, the Recovery Partition can also be used to load 64-bit Windows 7 Professional (32-bit ships by default from Panasonic).

You can order the Recovery Disks here:

http://business.panasonic.com/support-computerstablets-dvdrequests

Good Luck!
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989

It sounds to me like you requre Win'XP Service Pack 3.
If you are using Service Pack 2 or earlier, there is no
SATA support which is why the HDD is not recognized.

Get Service Pack 3 and your problems will be solved.

Good Luck

Both the Sound and Chipset Drivers for
the Panasonic Toughbook CF74 can be
found at the following website:

http://pc-dl.panasonic.co.jp/itn/drivers/d_menu_en.html

Good Luck!
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989

The best way to "Factory" Restore your Panasonic
Toughbook CF74 is to use the original recovery
disk(s) that came with the unit when new.

If you can't find them, you can order them from
Panasonic at the following website:

http://business.panasonic.com/support-computerstablets-dvdrequests

Here is what they say:
Recovery DVDs are available by mail for select Toughbook® products. Windows® XP back up service is only available to customers who purchased Panasonic computers with XP downgrade rights. Windows XP Backup Image and Windows 7 Recovery DVDs restore a PC to its original factory image. The standard Panasonic factory image includes the Windows operating system and all drivers/applications originally installed by Panasonic.

Good Luck!
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989

Just a thought but are you using XP Pro SP2 or SP3?

In my experience, only XP Service Pack 3 will see your
Hard Disk Drive, not XP Service Pack 2.

Good Luck!
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989

On any Panasonic Toughbook, I would try to hold down the power button for 12-15 seconds continously unit you hear an audible beep and that will cause the unit to "reset". Then you should be able to power back on as normal. If this does not work, try unplugging the Toughbook, taking out the battery pack. Do not yet put the battery back in but plug it back in. Then try to start the unit. If this does not still work, then try holding down the power button again for 12-15 seconds. If the unit is just stuck in suspend or hibernate then one of these actions is almost certain to work.

Good Luck.
From Richard, Montreal Based Panasonic Canada Authorized Toughbook Dealer since 1989.

I don't thank they have it out for tablet yet. Wait a bit and they should.