Damaged copy of HighSierra?

[zoran]

What a strange comment about a damaged HSierra copy that cannot be used! This msg came up as i tried to open the file from the App Store!
What do i do?

 

[Apple_Robert]

You need to download another install file. The one you have expired, if you downloaded it a good while back.

 

[ssmed]

Was this a fresh download, or an old one with the certificate revoked.?

 

[zoran]

You need to download another install file. The one you have expired, if you downloaded it a good while back.

Where from?

 

[zoran]

Was this a fresh download, or an old one with the certificate revoked.?

It was an old download

 

[Apple_Robert]

Where from?

Try the Apple link below.

How to download and install macOS - Apple Support

Download and install current or previous versions of the Mac operating system on compatible Mac computers.

support.apple.com

If you previously downloaded High Sierra on the same device you are using, it may still show in purchased. If it doesn’t, you will have to hunt it down, unless a terminal command works.

 

[ssmed]

It was an old download

That makes sense, but it is a nuisance when you have carefully archived an installer incase it is needed in the future.

 

[zoran]

I click on the Open button in the AppStore but nothing happens, maybe its downloading? But if that occurs i have no clue where!

 

[ssmed]

• macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion, Lion

 

[FFFalcon]

.

 

[zoran]

Go to the link #ssmed gave and all works fine

 

[DeltaMac]

That downloaded installer app will likely work OK after you use it to make a USB bootable installer.