Update 1.9.1 will be available to pre-load from 09 June 2020 onwards, just before the official release, allowing you to jump right into the battle as soon as it hits without the bother of download times.
Here's how it works
Make sure "Download updates in advance" is ticked. Click "Save" to apply the changes to the settings.
Please note that this is just a test of a new process. It's not guaranteed that this distribution method will be introduced permanently.
What is preloading?
Basically, you're downloading files for a future update in advance (approximate size: 1.2 GB). These files will be installed only on the day of the official release. The installation will be performed after starting the launcher, once the work on the game servers is over.
Does preloading affect the possibility of playing World of Tanks?
Not at all, you will be able to play World of Tanks whenever you like. However, if this function is enabled, the download process will be automatically paused and resumed right after quitting the game. You can pause the download at any moment.
Where are the update files stored? Can I copy them to a portable device and share them with a friend?
Yes, you will be able to share them with your friends, since the update files will be stored in the standard folder on your computer С:\Games\World_of_Tanks\Updates (or, if your friend has installed the game in another folder Your drive:\Games\World_of_Tanks\Updates).
If I click the Pause button in the launcher, will the download continue the next time or start anew?
It will resume the download.
Can I select SD/HD options during preloading?
No, only files that correspond to the currently installed version will be downloaded.
Where should I report any technical issues if they arise during the preloading?
We will answer all your questions regarding this topic in this forum thread.