Won't start after upgrading to windows 10

After upgrading to windows 10 my eM client wont open and I get this error.
eM Client (6.0.23421.0)
Windows: Microsoft Windows NT 6.2.9200.0, Framework: 4.0.30319.42000
The following error has occurred:
System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize —> System.Configuration.ConfigurationErrorsException: Unrecognized configuration section startup. (C:\Program Files (x86)\eM Client\MailClient.exe.Config line 3)
   at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
   at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)
   at System.Configuration.BaseConfigurationRecord.ThrowIfInitErrors()
   at System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)
   — End of inner exception stack trace —
   at System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)
   at System.Configuration.ClientConfigurationSystem.PrepareClientConfigSystem(String sectionName)
   at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
   at System.Configuration.ConfigurationManager.GetSection(String sectionName)
   at System.Configuration.PrivilegedConfigurationManager.GetSection(String sectionName)
   at System.Net.Configuration.SettingsSectionInternal.get_Section()
   at MailClient.Program.Main(String[] args)

" rel=“nofollow”>http://emclient.com/ns/report">;

eM Client
6.0.23421.0

false

Microsoft Windows NT 6.2.9200.0
4.0.30319.42000


System.Configuration.ConfigurationErrorsException
Configuration system failed to initialize
System.Configuration




System.Configuration.dll
100663522
System.Configuration
System.Configuration.ClientConfigurationSystem
EnsureInit


mscorlib
System.String
configKey



120
23c




System.Configuration.dll
100663523
System.Configuration
System.Configuration.ClientConfigurationSystem
PrepareClientConfigSystem


mscorlib
System.String
sectionName



8
20




System.Configuration.dll
100663525
System.Configuration
System.Configuration.ClientConfigurationSystem
System.Configuration.Internal.IInternalConfigSystem.GetSection


mscorlib
System.String
sectionName



0
12




System.Configuration.dll
100663817
System.Configuration
System.Configuration.ConfigurationManager
GetSection


mscorlib
System.String
sectionName



f
4f




System.dll
100664863
System
System.Configuration.PrivilegedConfigurationManager
GetSection


mscorlib
System.String
sectionName



0
1f




System.dll
100670787
System
System.Net.Configuration.SettingsSectionInternal
get_Section


19
97




MailClient.exe
100675713
MailClient
MailClient.Program
Main


mscorlib
System.String[]
args



51
da





System.Configuration.ConfigurationErrorsException
Unrecognized configuration section startup. (C:\Program Files (x86)\eM Client\MailClient.exe.Config line 3)
System.Configuration




System.Configuration.dll
100663906
System.Configuration
System.Configuration.ConfigurationSchemaErrors
ThrowIfErrors


mscorlib
System.Boolean
ignoreLocal



28
9ced7




System.Configuration.dll
100663429
System.Configuration
System.Configuration.BaseConfigurationRecord
ThrowIfParseErrors


System.Configuration
System.Configuration.ConfigurationSchemaErrors
schemaErrors



0
23




System.Configuration.dll
100663340
System.Configuration
System.Configuration.BaseConfigurationRecord
ThrowIfInitErrors


0
c




System.Configuration.dll
100663522
System.Configuration
System.Configuration.ClientConfigurationSystem
EnsureInit


mscorlib
System.String
configKey



d2
143








MailClient.exe
C:\Program Files (x86)\eM Client\MailClient.exe
MailClient.exe
MailClient.exe
6.0.23421.0
eM Client
eM Client
6.0.23421.0
False
False
False
False
False
Language Neutral


ntdll.dll
C:\WINDOWS\SYSTEM32\ntdll.dll
ntdll.dll
ntdll.dll.mui
10.0.10240.16384 (th1.150709-1700)
NT Layer DLL
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


MSCOREE.DLL
C:\WINDOWS\SYSTEM32\MSCOREE.DLL
mscoree.dll
mscoree.dll
10.0.10240.16384 (th1.150709-1700)
Microsoft .NET Runtime Execution Engine
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


KERNEL32.dll
C:\WINDOWS\SYSTEM32\KERNEL32.dll
kernel32
kernel32
10.0.10240.16384 (th1.150709-1700)
Windows NT BASE API Client DLL
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


KERNELBASE.dll
C:\WINDOWS\SYSTEM32\KERNELBASE.dll
Kernelbase.dll
Kernelbase.dll.mui
10.0.10240.16384 (th1.150709-1700)
Windows NT BASE API Client DLL
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


ADVAPI32.dll
C:\WINDOWS\SYSTEM32\ADVAPI32.dll
advapi32.dll
advapi32.dll.mui
10.0.10240.16384 (th1.150709-1700)
Advanced Windows 32 Base API
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


msvcrt.dll
C:\WINDOWS\SYSTEM32\msvcrt.dll
msvcrt.dll
msvcrt.dll
7.0.10240.16384 (th1.150709-1700)
Windows NT CRT DLL
Microsoft® Windows® Operating System
7.0.10240.16384
False
False
False
False
False
English (United States)


sechost.dll
C:\WINDOWS\SYSTEM32\sechost.dll
sechost.dll
sechost.dll.mui
10.0.10240.16384 (th1.150709-1700)
Host for SCM/SDDL/LSA Lookup APIs
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


RPCRT4.dll
C:\WINDOWS\SYSTEM32\RPCRT4.dll
rpcrt4.dll
rpcrt4.dll.mui
10.0.10240.16384 (th1.150709-1700)
Remote Procedure Call Runtime
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


SspiCli.dll
C:\WINDOWS\SYSTEM32\SspiCli.dll
security.dll
security.dll
10.0.10240.16384 (th1.150709-1700)
Security Support Provider Interface
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


CRYPTBASE.dll
C:\WINDOWS\SYSTEM32\CRYPTBASE.dll
cryptbase.dll
cryptbase.dll
10.0.10240.16384 (th1.150709-1700)
Base cryptographic API DLL
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


bcryptPrimitives.dll
C:\WINDOWS\SYSTEM32\bcryptPrimitives.dll
bcryptprimitives.dll
bcryptprimitives.dll
10.0.10240.16384 (th1.150709-1700)
Windows Cryptographic Primitives Library
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


mscoreei.dll
C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscoreei.dll
mscoreei.dll
mscoreei.dll
4.6.79.0 built by: NETFXREL2
Microsoft .NET Runtime Execution Engine
Microsoft® .NET Framework
4.6.79.0
False
False
False
True
False
English (United States)


SHLWAPI.dll
C:\WINDOWS\SYSTEM32\SHLWAPI.dll
SHLWAPI
SHLWAPI.DLL.MUI
10.0.10240.16384 (th1.150709-1700)
Shell Light-weight Utility Library
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


combase.dll
C:\WINDOWS\SYSTEM32\combase.dll
COMBASE.DLL
COMBASE.DLL.MUI
10.0.10240.16384 (th1.150709-1700)
Microsoft COM for Windows
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


GDI32.dll
C:\WINDOWS\SYSTEM32\GDI32.dll
gdi32
gdi32
10.0.10240.16390 (th1_st1.150714-1601)
GDI Client DLL
Microsoft® Windows® Operating System
10.0.10240.16390
False
False
False
False
False
English (United States)


USER32.dll
C:\WINDOWS\SYSTEM32\USER32.dll
user32
user32
10.0.10240.16384 (th1.150709-1700)
Multi-User Windows USER API Client DLL
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


IMM32.DLL
C:\WINDOWS\SYSTEM32\IMM32.DLL
imm32
imm32
10.0.10240.16384 (th1.150709-1700)
Multi-User Windows IMM32 API Client DLL
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


avghookx.dll
C:\Program Files (x86)\AVG\AVG2015\avghookx.dll
avghookx.dll
avghookx.dll
15.0.0.6173
None
AVG Internet Security
15.0.0.6173
False
False
False
True
True
Language Neutral


MSCTF.dll
C:\WINDOWS\SYSTEM32\MSCTF.dll
MSCTF
MSCTF.DLL.MUI
10.0.10240.16384 (th1.150709-1700)
MSCTF Server DLL
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


kernel.appcore.dll
C:\WINDOWS\SYSTEM32\kernel.appcore.dll
kernel.appcore.dll
kernel.appcore.dll
10.0.10240.16384 (th1.150709-1700)
AppModel API Host
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


VERSION.dll
C:\WINDOWS\SYSTEM32\VERSION.dll
version
VERSION.DLL
10.0.10240.16384 (th1.150709-1700)
Version Checking and File Installation Libraries
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


clr.dll
C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
clr.dll
clr.dll
4.6.96.0 built by: NETFXREL2STAGE
Microsoft .NET Runtime Common Language Runtime - WorkStation
Microsoft® .NET Framework
4.6.96.0
False
False
False
True
False
English (United States)


MSVCR120_CLR0400.dll
C:\WINDOWS\SYSTEM32\MSVCR120_CLR0400.dll
msvcr120_clr0400.dll
msvcr120_clr0400.dll
12.00.52512.0 built by: VSWINSERVICING
Microsoft® C Runtime Library
Microsoft® Visual Studio® 2013
12.00.52512.0
False
False
False
False
False
English (United States)


mscorlib.ni.dll
C:\WINDOWS\assembly\NativeImages_v4.0.30319_32\mscorlib\739821138ef3780d29566f16c4ec3836\mscorlib.ni.dll
mscorlib.dll
mscorlib.dll
4.6.96.0 built by: NETFXREL2STAGE
Microsoft Common Language Runtime Class Library
Microsoft® .NET Framework
4.6.96.0
False
False
False
True
False
English (United States)


ole32.dll
C:\WINDOWS\SYSTEM32\ole32.dll
OLE32.DLL
OLE32.DLL.MUI
10.0.10240.16384 (th1.150709-1700)
Microsoft OLE for Windows
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


uxtheme.dll
C:\WINDOWS\system32\uxtheme.dll
UxTheme.dll
UxTheme.dll.mui
10.0.10240.16384 (th1.150709-1700)
Microsoft UxTheme Library
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


CRYPTSP.dll
C:\WINDOWS\SYSTEM32\CRYPTSP.dll
cryptsp.dll
cryptsp.dll
10.0.10240.16384 (th1.150709-1700)
Cryptographic Service Provider API
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


bcrypt.dll
C:\WINDOWS\SYSTEM32\bcrypt.dll
bcrypt.dll
bcrypt.dll.mui
10.0.10240.16384 (th1.150709-1700)
Windows Cryptographic Primitives Library
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


rsaenh.dll
C:\WINDOWS\system32\rsaenh.dll
rsaenh.dll
rsaenh.dll.mui
10.0.10240.16384 (th1.150709-1700)
Microsoft Enhanced Cryptographic Provider
Microsoft® Windows® Operating System
10.0.10240.16384
False
False
False
False
False
English (United States)


clrjit.dll
C:\Windows\Microsoft.NET\Framework\v4.0.30319\clrjit.dll
clrjit.dll
clrjit.dll
4.6.96.0 built by: NETFXREL2STAGE
Microsoft .NET Runtime Just-In-Time Compiler
Microsoft® .NET Framework
4.6.96.0
False
False
False
True
False
English (United States)


OLEAUT32.dll
C:\WINDOWS\SYSTEM32\OLEAUT32.dll
OLEAUT32.DLL

10.0.10240.16384


10.0.10240.16384
False
False
False
False
False
English (United States)


System.ni.

I tried the REPAIR feature on the download with no success.
I’m hesitating at reinstalling. Don’t want to lose emails.

I have tried the REPAIR several times and once I got this message.
I was not able to duplicate the message and did not resolve the issue when I rebooted.
![](https://d2r1vs3d9006ap.cloudfront.net/s3_images/1299807/RackMultipart20151027-20981-17j54d1-Screenshot 1 inline.png?1445967321 “Image https//d2r1vs3d9006apcloudfrontnet/s3_images/1299807/RackMultipart20151027-20981-17j54d1-Screenshot__1__inlinepng1445967321”)

Hi Kay,
if you dont have any POP accounts set up or saved all your data in local database, you shouldn’t need to worry, as your data is probably saved on the server.
Additionally, if you don’t delete your database manually, reinstalling shouldn’t delete your data either.
You can make a copy of your database for now (it should be located in C:\Users\ YOUR LOCAL ACCOUNT \AppData\Roaming\eM Client) just to be sure.

I suggest uninstalling the eM Client for now and downloading a clean installer from our download page http://www.emclient.com/download and it should pair up with your database when you install it again.

Best regards,
Olivia