@thomas-braun
Hello
Here is what happend:

C:\Program Files\iobroker\SmartHome>npm install
npm WARN deprecated dgram@1.0.1: npm is holding this package for security reasons. As it's a core Node module, we will not transfer it over to other users. You may safely remove the package from your dependencies.

> @serialport/bindings-cpp@10.7.0 install C:\Program Files\iobroker\SmartHome\node_modules\@serialport\bindings-cpp
> node-gyp-build


> iobroker.inst@2.0.3 install C:\Program Files\iobroker\SmartHome
> node lib/checkVersions.js

NPM version: 6.14.16

> iobroker.inst@2.0.3 postinstall C:\Program Files\iobroker\SmartHome
> node lib/install.js

Write "iobroker start" to start the ioBroker
npm install node-windows@0.1.14 --production --save --prefix "C:/Program Files/iobroker/SmartHome"
+ node-windows@0.1.14
added 5 packages from 8 contributors in 2.665s
This service is already installed.
ioBroker service installed. Write "serviceIoBroker start" to start the service and go to http://localhost:8081 to open the admin UI.
To see the outputs do not start the service, but write "node node_modules/iobroker.js-controller/controller"
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: osx-temperature-sensor@^1.0.7 (node_modules\iobroker.info\node_modules\osx-temperature-sensor):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for osx-temperature-sensor@1.0.7: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@~2.3.2 (node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

added 46 packages from 104 contributors and audited 575 packages in 16.858s

36 packages are looking for funding
  run `npm fund` for details

found 14 vulnerabilities (4 low, 5 moderate, 5 high)
  run `npm audit fix` to fix them, or `npm audit` for details

C:\Program Files\iobroker\SmartHome>

Thanks in advance

Mod-Edit: Code in </> Code-Tag gepackt!

Hello
I have some strange issue with my installtion

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'C:\\Program Files\\iobroker\\SmartHome\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\iobroker\\SmartHome\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'audit',
1 verbose cli   'fix'
1 verbose cli ]
2 info using npm@6.14.16
3 info using node@v14.19.1
4 verbose npm-session f6c27cdf1024e538
5 verbose stack Error: Errors were found in your package-lock.json, run  npm install  to fix them.
5 verbose stack     Missing: iobroker.discovery@stable
5 verbose stack     Missing: iobroker.info@stable
5 verbose stack     at C:\Program Files\iobroker\SmartHome\nodejs\node_modules\npm\lib\audit.js:184:19
6 verbose cwd C:\Program Files\iobroker\SmartHome
7 verbose Windows_NT 10.0.19044
8 verbose argv "C:\\Program Files\\iobroker\\SmartHome\\nodejs\\node.exe" "C:\\Program Files\\iobroker\\SmartHome\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "audit" "fix"
9 verbose node v14.19.1
10 verbose npm  v6.14.16
11 error code ELOCKVERIFY
12 error Errors were found in your package-lock.json, run  npm install  to fix them.
12 error     Missing: iobroker.discovery@stable
12 error     Missing: iobroker.info@stable
13 verbose exit [ 1, true ]

Mod-Edit: Code in </> Code-Tag gepackt!

Hello
I just did an updata where I installed nodejs 14.19.1. that was OK
But after I did and iobroker upgrade self my webpage ( localhost:8081) want open !!
Iobroker is running and all seems to be good

see LOG:

C:\Program Files\iobroker\SmartHome>iobroker start
2022-05-04 23:54:58,763 INFO - Starting the service with id 'iobroker(SmartHome)'
2022-05-04 23:54:58,826 FATAL - WMI Operation failure: ServiceAlreadyRunning
WMI.WmiException: ServiceAlreadyRunning
at WMI.WmiRoot.BaseHandler.CheckError(ManagementBaseObject result)
at WMI.WmiRoot.InstanceHandler.Invoke(Object proxy, MethodInfo method, Object[] args)
at winsw.WrapperService.Run(String[] _args, ServiceDescriptor descriptor)
at winsw.WrapperService.Main(String[] args)
WMI.WmiException: ServiceAlreadyRunning
at WMI.WmiRoot.BaseHandler.CheckError(ManagementBaseObject result)
at WMI.WmiRoot.InstanceHandler.Invoke(Object proxy, MethodInfo method, Object[] args)
at winsw.WrapperService.Run(String[] _args, ServiceDescriptor descriptor)
at winsw.WrapperService.Main(String[] args)

C:\Program Files\iobroker\SmartHome>iobroker isrun
iobroker is running on this host.

Any idea what is the problem ?
Thanks