# Navigraph Navdata Center Confusion

**URL:** <https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056>\
**Category:** Navigraph Hub\
**Created:** [May 19, 2022, 11:15pm UTC](https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056 "2022-05-19T23:15:17Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Bingo041](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@Bingo041](https://forum.navigraph.com/u/Bingo041)\
**Post date:** [May 19, 2022, 11:15pm UTC](https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056/1 "2022-05-19T23:15:17Z")

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I just installed the Navigraph Navdata Center and when I run it, a message comes up stating “No Simulator Detected.”

I have been flying my PMDG 737-700 recently released. It has the current FMC database installed APR21May19/22. I just don’t know if this was automatically updated by you, or PMDG the day it was released?

In looking at the MSFS Content manager in the simulator, I see I have the Navigraph AIRAC Cycle 2201 Rev, and AIRAC Cycle Base Installed.

In looking at example Navigraph Navdata Center on your website, I appears filled out to where a user can chose to setup the PMDG 737, plus a few other things, where as my example is completely blank because “No Simulator Detected.”

I’m confused?  
Bill Clark

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**Author:** ![m4rkus](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/m4rkus/32/330_2.png) [@m4rkus](https://forum.navigraph.com/u/m4rkus)\
**Post date:** [May 20, 2022, 12:08am UTC](https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056/2 "2022-05-20T00:08:58Z")

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Hi Bingo,

Something might have happened with your UserOpt.cfg file in the simulator. Please check this thread for hints on how to fix it. [Connot find simulator](https://forum.navigraph.com/t/connot-find-simulator/4645)

Kind regards,

Markus

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**Author:** ![vakis1961](https://avatars.discourse-cdn.com/v4/letter/v/ecb155/32.png) [@vakis1961](https://forum.navigraph.com/u/vakis1961)\
**Post date:** [May 20, 2022, 7:47am UTC](https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056/3 "2022-05-20T07:47:39Z")

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I find a solution. I disabled my AVG antivius, i ran the Navdata center and enabled again.

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**Author:** ![Bingo041](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@Bingo041](https://forum.navigraph.com/u/Bingo041)\
**Post date:** [May 20, 2022, 10:32pm UTC](https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056/4 "2022-05-20T22:32:54Z")

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I uninstalled Navigraph Center, then reinstalled it. This time I brought up the Properties Screen of the installer, selected Compatibility, then checked, “Run this program as an administrator.” After that, I clicked on the NNC.exe installer and installed as an administer…it worked, problem solved.

Thanks for your help!  
Bill Clark

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**Author:** ![RockyMelendez](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@RockyMelendez](https://forum.navigraph.com/u/RockyMelendez)\
**Post date:** [May 21, 2022, 4:03am UTC](https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056/5 "2022-05-21T04:03:31Z")

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I was having the same issue and I did as you did and it works now! Thank you!-Rocky Jet Melendez

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**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/1X/4cc83e90d70ab312b1bd2d7527bddad309607265.png) [@system](https://forum.navigraph.com/u/system)\
**Post date:** [June 10, 2023, 10:29am UTC](https://forum.navigraph.com/t/navigraph-navdata-center-confusion/8056/6 "2023-06-10T10:29:45Z")

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