Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Impossible to activate prepar 3d v 4.5

Featured Replies

Impossible to activate prepar 3d v 4.5. Everything perfect, download and installation, but when I click the activation box, it closes the programe and stops working. No message from windows cannot execute, nor error code or anything. I have followed all the technical recommendations for downloading and installation (run as administrator, no firewall, no antivirus, no usb, update all drivers, etc.) and I have not been able to find a solution after several days of many downloads and installations. Can anybody help me ? 

Thank you

 

 

There's a recent Win 10 update that's causing this sort of problem for some people.  There are discussions in the Win 10 forum and perhaps the P3D forum as well.

Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

  • Author
3 minutes ago, w6kd said:

There's a recent Win 10 update that's causing this sort of problem for some people.  There are discussions in the Win 10 forum and perhaps the P3D forum as well.

I am running windows 7... thanks

Try uninstalling P3D Client (will not affect other installs).  Then reinstall using "Run as Administrator".

Jim Young | AVSIM Online! - Simming's Premier Resource!

Member, AVSIM Board of Directors - Serving AVSIM since 2001

Submit News to AVSIM
Important other links: Basic FSX Configuration Guide | AVSIM CTD Guide | AVSIM Prepar3D Guide | Help with AVSIM Site | Signature Rules | Screen Shot Rule | AVSIM Terms of Service (ToS)

I7 8086K  5.0GHz | GTX 1080 TI OC Edition | Dell 34" and 24" Monitors | ASUS Maximus X Hero MB Z370 | Samsung M.2 NVMe 500GB and 1TB | Samsung SSD 500GB x2 | Toshiba HDD 1TB | WDC HDD 1TB | Corsair H115i Pro | 16GB DDR4 3600C17 | Windows 10 

 

  • Commercial Member

Suspend your current antivirus checks before trying to activate, sometimes false positives occur due to the licensing checking, etc. which interrupts the process and shut down the application as it can be appreciated on your video.

Don't forget to enable it back after you completed the process, if this fails post directly in the P3D forums so the licensing team can proceed to start helping you.

S.

Signature3.png

Oficial Website: https://www.FSReborn.com
Discord Channel: https://discord.gg/XC82TqvKQ3

Is 4.5 worth it currently or does it break most add-ons and scenery?

Edited by Kilo60

Chris Camp

1 hour ago, Kilo60 said:

Is 4.5 worth it currently or does it break most add-ons and scenery?

Last week, I did a fresh install of 4.5. My previous install of v4 had been thru 3 upgrades and was time to start fresh.

It was a lengthy process considering all the Orbx and aircraft to be downloaded/installed. 

Overall, I am very pleased with v4.5...it seems to be smoother across all FPS. Also, seems like they have make some changes to the lighting engine (not sure, but it is looking better for me). 

I have not experienced the long load times or stutters that have been reported. But, again, this is a fresh install.

Hope this helps.

My MSFS 2020 repaints: Flightsim.to - Profile of HStreet

Working on MSFS 2024 versions.

That's good news!

 

I noticed most payware add-on are still listed for v4.0...

Chris Camp

Couple of thoughts...did you install outside of the windows protected folder (../Program files (x86) to dedicated folder -  to something like C:\Lockheed Martin\Prepar3dv4.5) which is recommended and did you install with Admin rights and are you running Prepa3dv4.5 with Admin rights, this has caught me out a few times when running some addons, they will nut run correctly without Admin privileges.

Edited by JustanotherPilot

YBCG

Are you sure that installing Prepar3D outside the Program Files folder is "recommended"? I have always installed FSX/P3D in the relevant Program Files or Program Files (x86) folder, and I have never had to run or install anything "as administrator". Maybe it's because I have disabled UAC (or whatever write protection was active in older versions of Windows) every time, and also because I have not yet upgraded to Windows 10.

Edited by Christopher Low

Christopher Low

AMD Ryzen 7 9800X3D CPU / 64GB DDR5-6000 RAM / 12GB Nvidia RTX 4070 Super GPU / Gigabyte X870E Aorus Elite Wifi 7 / 1+2TB Samsung Evo Plus M2 Nvme

UK2000 Beta Tester

I have NEVER had a problem with P3D, since I installed it OUTSIDE the defaulkt location. In fact PMDG recommends that their products are installed outside the relevant Program Files or Program Files (x86) folder. 

 

Jack

Jack J Jackson

Castalla, Alicante, Spain

Archived

This topic is now archived and is closed to further replies.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.