Installation failed in SAFE_OS phase with an error during BOOT operati

Upgrades from Windows 7 to Windows 10 don't always go well. Can you still boot into Windows 7?
If not, a Clean Install of Windows 10 will be the best way forward

Hi, that number is typical of a driver incompatibility. Do feel free to simply use Google and search for
failed in SAFE_OS phase with an error during BOOT operation
and
0xC1900101 – 0x20017

- and search this forum too for examples.

Diagnosis of upgrade failures is arduous- a few are very lucky but for others it runs to days of posts. User @zbook is most familiar with the various tools for you to access the numerous log files created.

Basics: see
Upgrade to Windows 10

from
Get help with Windows 10 upgrade and installation errors - Windows Support
below the table.
Follow the links to more pages and links. Lots of info there.

Basic preparation for the upgrade:
- check your disk (Hard disk sentinel - trial, Crystal Diskinfo (free) )
- check your file system - chkdsk c: /scan from an admin command or Powershell prompt
- similarly run
SFC /SCANNOW

Uninstall any 3rd party security software
Perform a clean boot
Download a Win 10 iso file (via the MS media creation tool) so you can readily repeat the attempt

Download setupdiag.exe from MS (Google) and run that and post the result (attempts to match failure from log with known cases- something of a beta)

Post a screenshot of your partitions using a 3rd party partition manager thus:


https://support.microsoft.com/en-us/...sion-of-window
https://docs.microsoft.com/en-us/win...rade/log-files

Be aware upgrade attempts can fail badly and the PC be left unbootable. Hopefully you are already using disk imaging routinely as is so, so often recommended here to protect yourself. E.g. Macrium Reflect (free).

The @zbook function does not appear to be working as there was no notification.

There are scripts that have been created to collect files for Windows 10 computers.
They may or may not work on Windows 7.
They are bat files and typically trigger antivirus.

Run:

Upgrade_failure_info.bat - Click here to go to the BSOD batch repository to download and run this batch file.

DiskParInfo.bat - Click here to go to the BSOD batch repository to download and run this batch file.

DM log collector:
https://www.tenforums.com/bsod-crashes-debugging/2198-bsod-posting-instructions.html
BSOD - Posting Instructions



1) Open administrative command prompt (ACP) and type or copy and paste:
2) sfc /scannow
3) wmic recoveros set autoreboot = false
4) wmic recoveros set DebugInfoType = 2
5) wmic recoveros get autoreboot
6) wmic recoveros get DebugInfoType
7) bcdedit /enum {badmemory}

8) When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread

Use this link as needed when posting results:
How to Change Post Editor to Source or WYSIWYG Mode at TenForums.com

9) Post an image of disk management after widening columns:

Disk Management - Post a Screen Capture Image - Windows 7 Help Forums

10) Overnight run chkdsk /r /v C:
Disk Check - Windows 7 Help Forums
Check Disk (chkdsk) - Read Event Viewer Log - Windows 7 Help Forums

11) Post images of startup and recovery system failure and virtual memory / page file settings
Dump Files - Configure Windows to Create on BSOD - Windows 7 Help Forums

12) Make sure windows drive free space > 30 GB:
Hard Disk Space - Free Up and Recover - Windows 7 Help Forums

13) Create a new restore point:
Restore Point - Add "Create Restore Point" to Context Menu in Windows - Windows 7 Help Forums

14) List and uninstall all non-Microsoft antivirus software

15) List and uninstall all non-Microsoft firewall software

16) List all Microsoft and non-Microsoft drive encryption software.







This is an upgrade checklist: (modified for upgrading 7 to 10)

Code:

UPGRADE CHECK LIST:
Run through this check list before the next upgrade attempt:

1) remove nonessential hardware
docks
USB devices
printers
headset
speakers
joysticks
projectors
scanners
plotters
portable optical drives (CD, DVD)
microphones
cameras
webcams
smartphones
bluetooth devices
USB drives (other than a windows 10 iso if used for the upgrade)
USB Wireless Mouse or Keyboard Receiver, USB Wireless Network Card
secondary monitors


2) These should be the only attached devices:
wired mouse
wired keyboard
monitor

Any of these that have been done in the past week are not necessary to repeat:


3) open administrative command prompt and type or copy and paste: (repair file system)
chkdsk /r /v C:
This may take many hours so plan to run overnight
Find the chkdsk report in the event viewer using the information in this link and post into the thread:
https://www.sevenforums.com/tutorials/433-disk-check.html
https://www.sevenforums.com/tutorials/96938-check-disk-chkdsk-read-event-viewer-log.html

4) open administrative command prompt and copy and paste: (repair operating system)
sfc /scannow 

When this has completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread

5) update windows (have all recommended updates installed) and reboot after updates

6) List and uninstall all non-Microsoft antivirus software
(This includes always on and manual software.)
(This includes running the applicable antivirus uninstall tools for any AV that could have been incompletely uninstalled)
https://www.bitdefender.com/consumer/support/answer/2625/
(And this includes uninstalling Microsoft Security Essentials (MSE) immediately before the upgrade attempt)

7) List and uninstall all non-Microsoft firewall software

8) List all Microsoft and non-Microsoft drive encryption software. 
Uninstall all non-Microsoft disk encryption software

9) Run disk cleanup to clean temporary and system files
https://www.sevenforums.com/tutorials/818-disk-cleanup-open-use.html

10) Create and verify that the drive has > 30 GB free space (At least 25 GB is needed for maintaining certain dump files)
https://www.sevenforums.com/tutorials/129976-hard-disk-space-free-up-recover.html
https://www.sevenforums.com/tutorials/274797-disk-management-post-screen-capture-image.html


11) Consider placing the computer in clean startup:
https://www.sevenforums.com/tutorials/179159-troubleshoot-application-conflicts-performing-clean-startup.html

12) Detach all SATA devices other than the disk drive that has the Windows operating system
(Make sure that the only disk drive that is attached to the computer at the time of the upgrade attempt is the disk drive containing Windows)
(Other disk drives may be able to be detached by disconnecting cables or if necessary to remove the drive from the computer)

13) Make sure that there is no metered connection:  https://support.microsoft.com/en-us/help/17452/windows-metered-internet-connections-faq

14) Consider making a free backup image:
https://www.sevenforums.com/tutorials/73828-imaging-free-macrium.html
https://www.sevenforums.com/tutorials/218920-macrium-reflect-create-bootable-rescue-usb-drive.html

15) Test the drive:
https://www.seagate.com/support/downloads/seatools/
Crystal Disk standard edition:
https://crystalmark.info/en/software/crystaldiskinfo/