powershell help does not seem to work

When I try help in powershell i don't get any help. I get as given in pic.

What to do to get proper help?

When I tried update-help, I got error as follows.

Bree said:

It looks like your file system is corrupt. The 1st screenshot is displaying text from completely the wrong source. You should be seeing this...


The 2nd screenshot says it is unable to locate an .xml file.

Check your disk from a Command Prompt (Admin) with chkdsk C: /f
answer Y when asked "Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)" then restart the PC.

Next, from a Command Prompt (Admin) run sfc /scannow
Run SFC Command in Windows 10 | Windows 10 Tutorials

If the system is too badly corrupted to repair you may need to do a clean install, unless that is you have a recent system image you can restore. It is highly recommended that you make regular system images with something like Macrium Reflect (Free) so that you can recover from disasters like this. It is possible the corruption is due to a failing disk., another case wher a system image would allow a full restore to a replacement drive.

I have checked with sfc /scannow. It shows all are ok. I have a system images backed up with macrium. Is there any other way to correct the above error with out clean install or using macrium image? Get-help dir works OK.

dalchina said:

Hi, did you do the first part of what @Bree asked?


Try this to fix Powershell:
Press Windows key + R
Type: optionalfeatures.exe
Hit Enter

Scroll down and locate the Windows PowerShell entry.
Uncheck the PowerShell feature.
Save and apply your changes.
Restart your Windows 10 computer.
Afterwards, repeat the steps from above and re-enable the Windows PowerShell feature.

Thanks for response.
I have done chkdsk C: /f also.
still not working. I tried your suggestion also. That also does not work.
But as I said get-help dir works. Please see below

Bree said:

has an alias for 'help' been inadvertently set? try get-alias h* to find out.

Thanks.
I don't get it in alias.
seepic

Finally I reset my windows. I could get help to work.
But get-alias does not show help. But help works. see pic below


Still update-help shows error as in pic below.

Any help to remove this error will be helpful

I'm getting the same error. There must not be an update for it.
Run: Update-Help -Force -ErrorAction SilentlyContinue