Dear Abhay, I have no vendor daemon log so far, as I didn't import any key up to this point. The error message already comes on the first login, after/together with the mandatory changing of the password. The lmadmin.log ist empty in both logs directories. C:\ProgramData\FLEXlm\lmadmin\logs\web.log [Fri Apr 26 16:03:37.403058 2019] [:notice] [pid 10432:tid 1008] ModSecurity for Apache/2.9.2 (http://www.modsecurity.org/) configured. [Fri Apr 26 16:03:37.403058 2019] [:notice] [pid 10432:tid 1008] ModSecurity: APR compiled version="1.6.3"; loaded version="1.6.3" [Fri Apr 26 16:03:37.403058 2019] [:notice] [pid 10432:tid 1008] ModSecurity: PCRE compiled version="8.41 "; loaded version="8.41 2017-07-05" [Fri Apr 26 16:03:37.403058 2019] [:notice] [pid 10432:tid 1008] ModSecurity: LIBXML compiled version="2.9.9" [Fri Apr 26 16:03:37.403058 2019] [:notice] [pid 10432:tid 1008] ModSecurity: Status engine is currently disabled, enable it by set SecStatusEngine to On. [Fri Apr 26 16:03:37.403058 2019] [ssl:warn] [pid 10432:tid 1008] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache] [Fri Apr 26 16:03:37.403058 2019] [mpm_winnt:notice] [pid 10432:tid 1008] AH00354: Child: Starting 10 worker threads. WARNING: An error ocurred saving the config file: unable to open file 'C:\ProgramData\FLEXlm\lmadmin\conf\server.xml' WARNING: An error ocurred saving the config file: unable to open file 'C:\ProgramData\FLEXlm\lmadmin\conf\server.xml' C:\ProgramData\FLEXlm\lmadmin2\logs\web.log [Fri Apr 26 16:03:42.906210 2019] [:notice] [pid 12572:tid 996] ModSecurity for Apache/2.9.2 (http://www.modsecurity.org/) configured. [Fri Apr 26 16:03:42.906210 2019] [:notice] [pid 12572:tid 996] ModSecurity: APR compiled version="1.6.3"; loaded version="1.6.3" [Fri Apr 26 16:03:42.906210 2019] [:notice] [pid 12572:tid 996] ModSecurity: PCRE compiled version="8.41 "; loaded version="8.41 2017-07-05" [Fri Apr 26 16:03:42.906210 2019] [:notice] [pid 12572:tid 996] ModSecurity: LIBXML compiled version="2.9.9" [Fri Apr 26 16:03:42.906210 2019] [:notice] [pid 12572:tid 996] ModSecurity: Status engine is currently disabled, enable it by set SecStatusEngine to On. [Fri Apr 26 16:03:42.906210 2019] [ssl:warn] [pid 12572:tid 996] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache] [Fri Apr 26 16:03:42.906210 2019] [mpm_winnt:notice] [pid 12572:tid 996] AH00354: Child: Starting 10 worker threads. See also attached screenshot for error message in lmadmin for second installation. Again there is only 1 entry in "Apps & Features". Today, I tried two different ways to start the installer.  First time, I started the installer just by double-click.  Then I was asked for an admin account. For both installations.  The second time, after having uninstalled everything, I did a right-click on the installer and chose "Start as administrator".  But always the same results. What I did not try so far, is to login to windows with an administrator account.  Don't know, if this would make a difference. ... View more