My system fails when doing "Feature Update For W10 Version 1703".

Hi, if I understand you correctly, and please correct me if I'm wrong, your current build is the Anniversary Update (1607) and either you are
- receiving the Creator's Update by Windows Update or
or
- manually updating Windows to the Creator's Update using an iso or bootable Win 10 medium.

(Which of those?)

Example:
http://www.thewindowsclub.com/fix-ca...ng-windows-8-1

From the 3rd case there, could you please post a screenshot of your Disk Management partition structure?
(Windows key + X, click Disk Management)
Post your screenshot using the Insert Image icon to the left of the video icon above your post.

Thanks.

Hi, I believe you have probably tried this fix:

change the value of PortableOperatingSystem in regedit HK_Local_Machine/System/CurrentControlSet/Control/ from 1 to 0

Please post a screenshot like that just to confirm that setting.

It is odd that you have two recovery partitions, and the 30Gb one is much smaller than any recovery partition should be.
Normally the EFI partition is about 100Mb.

If you don't have it, please download and install this:
Best Free Partition Manager for Windows | MiniTool Partition Free
as it shows more detail and post a screenshot like this:

making sure all the text in the columns is visible.

Important precautionary defensive step before upgrading
Create a disk imageAll regular contributors here recommend disk imaging. Some people have significant problems when upgrading. Creating a disk image lets you recover
- if your PC is unbootable
- your disk fails
- your PC is infected with ransomware
so it's something we recommend using routinely.

E.g. Macrium Reflect (free) + external storage for image sets (e.g. 2x the size of the data you are backing up)
- option Backup, Windows Backup

Then:

Following the idea in part 3 of the link in my first post, shrink C: by about, say, 700Mb to leave 700Mb of unallocated space.

Then try upgrading again.

Hi, here's how I interpret 3 of your partitions:

EFI: (normally 100Mb) 260Mb (Active & Boot)
System Reserved (typically 16mb): 128Mb
C: 433Gb

which leaves the Recovery partition.
Now I would expect this to be 450Mb, and it's NTFS. So that appears to be your 1000Mb partition.

I have no idea what the other two are. Perhaps another Lenovo owner may know. Nor do I know why your partitions are the size they are.

Anyway, what you can do, and this should be perfectly safe, is use the partition manager to shrink C: by, let's say, 1200Mb, given the size of your Recovery partition, and try upgrading.

If that works, great.

To get a bit more information:
Open an admin command prompt.

Type Reagentc /info
This will give sthg like this:


Now we need to know which that partition is.

Type
Diskpart
List Disk
from that identify the disk number n corresponding to your system disk
Select Disk n
List Partition

This should give sthg like this:


You can clearly see Partition 5 is the active recovery partition.

Hi, to identify the active Recovery partition of the two, still need the result from
Open an admin command prompt.
Type
Reagentc /info

The thought here is that once we know which Recovery partition is not in use, if the idea below doesn't help, delete the unused Recovery partition and try again.

I'm not sure what this means - the upgrade? Running those two commands is just getting info - they change nothing.

I rebooted and tried it, but it didn't help.

My suggestion (above #7) was:

use the partition manager to shrink C: by, let's say, 1200Mb, given the size of your Recovery partition, and try upgrading.

If this still fails, time to look at the log files.