{"id":384,"date":"2015-07-31T19:12:12","date_gmt":"2015-07-31T19:12:12","guid":{"rendered":"http:\/\/borncity.com\/win\/?p=384"},"modified":"2024-10-05T18:59:40","modified_gmt":"2024-10-05T16:59:40","slug":"windows-10-upgrade-error-0xc1900101-0x20004","status":"publish","type":"post","link":"https:\/\/borncity.com\/win\/2015\/07\/31\/windows-10-upgrade-error-0xc1900101-0x20004\/","title":{"rendered":"Windows 10: Upgrade error 0xC1900101 – 0x20004"},"content":{"rendered":"

\"\"Some users are receiving error 0xC1900101 \u2013 0x20004 during upgrade from Windows 7\/8.1 to Windows 10 (GA). Here are a few tips and workarounds to overcome this error.<\/p>\n

<\/p>\n

The error description<\/h3>\n

\"\"The error has been reported during upgrading Windows 7 or Windows 8.1 to Windows 10 (final and Preview Builds). The users are observing that install progress stall at 25%. This is the step, where install files are copied to the destination partition. The copy process stops at 84% and setup drops error code 0xC1900101 \u2013 0x20004. The error message reported is:<\/p>\n

Error 0xC1900101 \u2013 0x20004<\/p>\n

The installation failed in SAFE_OS phase with an error during INSTALL_RECOVERY_ENVIRONMENT operation.<\/p><\/blockquote>\n

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 error has been reported also during Upgrade to Windows 8.1 and indicates, that something went wrong exchanging\/copying.<\/p>\n

Try a log file analysis<\/h3>\n

Windows 10 setup creates log files located in the hidden folders:<\/p>\n

$Windows.~BT\\sources\\Panther
\n$Windows.~BT\\sources\\Rollback<\/p>\n

In folder Panther <\/em>are *.log files, while folder Rollback<\/em> contains *.txt files. We need to copy the *.log files via context menu to the desktop. Then it's possible to open the log-files in Windows editor. This Technet-thread<\/a> contains parts of a setuperr.log<\/em> with indications that something went wrong during WLAN driver init. In some cases, the analysis shows which driver are causing the error.<\/p>\n

Workaround #1: Uninstall your Antivirus\/Internet Security Suites<\/h3>\n

I've mentioned in my German Windows 10 Upgrade-Troubleshooting FAQ \u2013 Teil 1<\/a>: 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. Therefore uninstall these tools before upgrading. 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.<\/p>\n

Workaround #2: Remove all unused SATA devices<\/h3>\n

There has been several reports, that DVD drives and other SATA drives are conflicting with Install Recovery Environment. Here<\/a> and here<\/a> users are reporting, that removing SATA DVD drive and removing SATA cables from unused devices has fixed the install issue.<\/p>\n

There is a simple cause for this issue: Some main boards are using SATA controllers that doesn't support AHCI mode \u2013 which is required during setup. In this case exchanging the SATA driver is a show stopper.<\/p>\n

Workaround #3: Convert dynamic discs to basic disks<\/h3>\n

A user comment in my German blog article<\/a> indicates another show stopper for Windows 10 upgrade:<\/p>\n

I had a simlare problem, installation aborted among 25% with the INSTALL_RECOVERY_ENVIRONMENT error
\nThe problem was my dynamic disk, windows cannot create a recovery partition on this type of disk.
\nYou have to revert back to basic disk with third party tools like partition wizard<\/p><\/blockquote>\n

Workaround #4: Remove all unused devices and drivers<\/h3>\n

If the recommendations given above doesn't help, try to process the following check list \u2013 because there has been several hints, that incompatible drivers or hardware acts as a show stopper.<\/p>\n