ISDone.dll problem when installing games

[Ayer]

I can't install any games because at some point through the installation process I get an ISDone.dll error. I tried turning off my antivirus/windows defender. I have also tried to install the games on other devices but I get an unarc.dll error. A week ago I could install all the games normally but now I get errors. someone pls help!

 

[Samat]

Try running sfc /scannow from administrative command prompt (windows key + x and select from list). If this doesn't fix it you can try this (you might need the install disk for your current Windows 10 build). Also check for viruses etc.

 

[bignastyid]

Exactly where are the games coming from? Disc, Steam, Origin, GIG, etc?

 

[Ayer]

Exactly where are the games coming from? Disc, Steam, Origin, GIG, etc?

They are downloaded .iso files

 

[Ayer]

Try running sfc /scannow from administrative command prompt (windows key + x and select from list). If this doesn't fix it you can try this (you might need the install disk for your current Windows 10 build). Also check for viruses etc.

Done it and still nothing :/

 

[Mousemonkey]

Exactly where are the games coming from? Disc, Steam, Origin, GIG, etc?

They are downloaded .iso files

And we're done here.