Fast Startup

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Brian K
Posts: 2213
Joined: Fri Aug 12, 2011 1:11 am
Location: NSW, Australia

Fast Startup

Post by Brian K »

Just to clear this in my mind. Say your computer has a single install of Win10 and Fast Startup is enabled. An external USB HD is connected.
The computer is shut down (not restarted) and booted into IFL.
A backup image of Win10 is created and written to the external USB HD.
Is there likely to be data corruption on the external USB HD?
TeraByte Support
Posts: 3596
Joined: Thu May 05, 2011 10:37 pm

Re: Fast Startup

Post by TeraByte Support »

Typically the USB hard drive writes the data to the drive so you can disconnect it, so while probably okay for that, if you had plugged it back in and then came out of hibernation it's possible it wouldn't know it was removed and changed so at that point it could be using old cached data for the drive which if then written would corrupt it.
TeraByte Support(PP)
Posts: 1643
Joined: Fri Aug 12, 2011 12:51 am

Re: Fast Startup

Post by TeraByte Support(PP) »

I ran a few quick tests with a powered USB drive and it had issues. Had drive connected in Windows and Fast Startup enabled. Shut down and then booted up into IFL. Saved a backup to the USB drive. Restarted back into Windows. Ran chkdsk /f on the drive. In one test, none of the three backup files showed up, in another test only one of three showed up (and it wasn't the .tbi file). Turned Fast Startup off and tested again and all the files showed up after booting into Windows and chkdsk /f didn't find any errors.

It might be different if you disconnected the USB drive before booting into Windows and then plugged it back in after Windows was up (didn't check that).
Brian K
Posts: 2213
Joined: Fri Aug 12, 2011 1:11 am
Location: NSW, Australia

Re: Fast Startup

Post by Brian K »

Thanks. Another scenario. You have created a Win10 backup image on the external USB HD while in Windows. Using IFW.
You then shutdown (not restart) and boot into IFL and restore the Win10 image. Will Win10 have data corruption?
TeraByte Support
Posts: 3596
Joined: Thu May 05, 2011 10:37 pm

Re: Fast Startup

Post by TeraByte Support »

@pp Yes, I would expect it would be different if not attached when starting Windows then attach after.

@bk It's going to be in a state probably fairly clean at that point (unless you just wrote tons of data and shutdown right away), restoring will handle stopping it from corrupting itself on startup.

But overall, it's best not to use it because it's not implemented correctly.
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