Can you try going to Windows Defender and disabling the option "Controlled Folder Access". The below forum post explains how to do this, check the Solution section:
https://kb.acronis.com/content/62142

Replay the Campaign.

The save files are in your Windows documents folder (...\Documents\My Games\Panzer Corps 2\Saves) So you would need to back them up.Then uninstall the game and delete ...\Documents\My Games\Panzer Corps 2 folder. After having installed the game you would need to copy the backup files back to their o...

I'm sorry but that coupon is not valid and we have sent by mistake as it belongs to an account that is locked.
May I remind you that you've already used your account's coupon this year in the order you placed in the 5th of March.

the_zek wrote: ↑Mon Jun 21, 2021 12:07 am Hello,

I'm having the same issue. How do I empty the game cache?

Thanks!

https://www.slitherine.com/forum/viewto ... 12#p930627

As the Gold edition is a compilation of all Panzer Corps games, in order to get a Steam key, you'll have to register separately the Gold Edition serial number on each of the individual games with the exception of the Grand Campaign Mega Pack: Panzer Corps Wehrmacht Grand Campaign '39 Grand Campaign ...

A new laptop with a dedicated video graphic with at least 4GB VRAM and 16GB RAM.
That's a standard gaming laptop nowadays.

https://www.pcgamer.com/uk/best-gaming-laptop/

It won't work well if you don't have 8GB RAM and a dedicated video card with at least 2GB VRAM.
I'm sorry but Integrated cards are good for office work and 2D games, not 3D games.

You can download games and patches/updates from your account’s download area provided they are registered to the account. Please see the forum post below which explains how to do this:

https://www.slitherine.com/forum/viewto ... 58&t=98463

You'll have to contact support[at]Slitherine.co.uk.

I am getting a weird reply when I try to download and update PC2, IT READS: ERROR unable to download file. An error occurred while trying to open an FTP file. this happens when I click on the self updater from within the game. Usually this issue is caused by the interference of a Internet security ...

scorehouse wrote: ↑Thu Jun 03, 2021 5:39 pm Hey Jonesy. see how EZ it is? LMAO good luck Kimosahbee

The procedure is extensive, and I'm repeating in some parts.
You can see another version here reduced, not for Panzer Corps 2 specifically, but for other games using a similar process:
https://www.matrixgames.com/forums/tm.asp?m=4599578

OK...AFTER I download it do I unzip it and then hit run? OK...AFTER I download it do I unzip it and then hit run? Please do the following: 1. Please download the game's installer file from your your account's download area. (*) 2. Once you have downloaded the file "PanzerCorps2-MultiSetup-v01....

Have you installed the Steam client?
That screenshot which you are showing is a Steam page from your Internet browser.
You've to install Steam on your computer in order to activate and play games.

Is the first time that you've installed the update V01.01.21?

As for Steam, please check this forum post for on how to redeem Steam keys for your games in your Slitherine/Matrix account:
https://www.slitherine.com/forum/viewto ... 58&t=93585

You can also download the patch from the mirror links provided in the first post.

Is the first time that you've installed the update V01.01.21?

I've always found Slitherines download procedure to be glitchy, overcomplicated and difficult to understand, so I'm not surprised people are having trouble, it badly needs streamlining..:) To be honest, I find some of the games UIs more complicated than the Slitherine procedures to install the DLCs...

1. Download the last update v01.01.15.0. again (PanzerCorps2-MultiUpdate-v01.01.21) (*) 2. Unzip the file and run the extracted file PanzerCorps2-MultiUpdate-v01.01.21.exe 3. When asked to insert the serial number, please click in the drop down menu "Select a New Product to Install... " an...

It's fixed.