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- #INSTALLATION FAILED IN THE SAFE_OS PHASE INSTALL#
- #INSTALLATION FAILED IN THE SAFE_OS PHASE DRIVERS#
- #INSTALLATION FAILED IN THE SAFE_OS PHASE DRIVER#
#INSTALLATION FAILED IN THE SAFE_OS PHASE DRIVERS#
If the recommendations given above doesn't help, try to process the following check list – because there has been several hints, that incompatible drivers or hardware acts as a show stopper. You have to revert back to basic disk with third party tools like partition wizard Workaround #4: Remove all unused devices and drivers The problem was my dynamic disk, windows cannot create a recovery partition on this type of disk. I had a simlare problem, installation aborted among 25% with the INSTALL_RECOVERY_ENVIRONMENT error Workaround #3: Convert dynamic discs to basic disksĪ user comment in my German blog article indicates another show stopper for Windows 10 upgrade:
#INSTALLATION FAILED IN THE SAFE_OS PHASE DRIVER#
In this case exchanging the SATA driver is a show stopper. There is a simple cause for this issue: Some main boards are using SATA controllers that doesn't support AHCI mode – which is required during setup.
#INSTALLATION FAILED IN THE SAFE_OS PHASE INSTALL#
Here and here users are reporting, that removing SATA DVD drive and removing SATA cables from unused devices has fixed the install issue. There has been several reports, that DVD drives and other SATA drives are conflicting with Install Recovery Environment. Workaround #2: Remove all unused SATA devices In case of AV software, it's mandatory to execute also a clean tool provided by AV vendors, to clean the system from filter drivers and left over installation files/settings. Therefore uninstall these tools before upgrading. I've mentioned in my German Windows 10 Upgrade-Troubleshooting FAQ – Teil 1: During upgrade to Windows 10, third party system tools like AV programs, Internet Security Suites or other system tools (virtual discs) can be a show stopper. Workaround #1: Uninstall your Antivirus/Internet Security Suites In some cases, the analysis shows which driver are causing the error. This Technet-thread contains parts of a setuperr.log with indications that something went wrong during WLAN driver init. Then it's possible to open the log-files in Windows editor. We need to copy the *.log files via context menu to the desktop. In folder Panther are *.log files, while folder Rollback contains *.txt files. Windows 10 setup creates log files located in the hidden folders: The error has been reported also during Upgrade to Windows 8.1 and indicates, that something went wrong exchanging/copying. INSTALL_RECOVERY_ENVIRONMENT is the environment used by Windows 10, to process a rollback to the previous Windows install, if an non recoverable error occurs. The installation failed in SAFE_OS phase with an error during INSTALL_RECOVERY_ENVIRONMENT operation. The copy process stops at 84% and setup drops error code 0xC1900101 – 0x20004. This is the step, where install files are copied to the destination partition. The users are observing that install progress stall at 25%. The error has been reported during upgrading Windows 7 or Windows 8.1 to Windows 10 (final and Preview Builds).