The game wont start after the update

@AceB011 Thanks for the post. I've been able to update the game on a few machines without issue, so I think it's best to look for something local. 

Can you try restarting with a Clean Boot and see if anything changes? Perhaps the updated game doesn't mix well with some of your software?

https://help.ea.com/en/help/faq/how-to-clean-boot-your-pc/

I'd also be interested in the Reliability History report for the crash. If you use the Windows search and start typing "Reliability", you'll see the option for "View Reliability History". 

If you choose this it'll bring up a tool that shows all the events, crashes and warning flags on your system, and it should have at least one marker for the GW2 crash, with some more details. 

Can you post the crash details here? Sometimes it's generic and doesn't help, but sometimes it's very useful.

Cheers,. 

@AceB011 Sometimes a reinstall can help when a repair was ineffective, but it's rare enough and the repair fixes the issue 98% of the time. 

When you checked the reliability history were there any other notable or frequent critical events? These can sometimes help to track down the issue. 

Save files are backed up automatically, and aren't removed when you uninstall a game, and in any case most of your progress in GW2 is stored server-side, so you don't need to worry about that. 

Source
Host Process for Windows Services

Summary
AppxDeploymentFailureBlue

Date
‎19-‎Sep-‎18 20:46

Status
No solution available

Problem signature
Problem Event Name: AppxDeploymentFailureBlue
FailureHresult: 80070003
DeploymentState: 10
OsimState: 1
ExtensionHandler: OSIM Host
BuildVersion: 6.3.9600.16425
EtwEventID: 402
OS Version: 6.3.9600.2.0.0.256.48
Locale ID: 1033

Extra information about the problem
Bucket ID: d5417767651b3bcf54e72b5cbf752410 (-310538085)


the last event on 19 September, this i have it multiple times, but the time and date are from very different times, example, before this one on 19th September 2018, the next same problem i had it on 29th November 2017 and 19th September 2017, so pretty sure this can't be. So also the next other problems are older than 3-4 months and they're not windows related, is anti-virus programs etc.

Thank you for the extra info.

Can you check for Windows Updates? Go to Search and type in "updates" and you'll get the appropriate tool. 

Often odd gaming issues are related to missing .NET updates, and a periodic failure could be related to this. 

Ah, thanks for coming back with the update!

Cheers.