# NSIS error **URL:** \ **Category:** General non MSFS data\ **Created:** [June 1, 2021, 1:03am UTC](https://forum.navigraph.com/t/nsis-error/5209 "2021-06-01T01:03:59Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Bluenosser](https://avatars.discourse-cdn.com/v4/letter/b/59ef9b/32.png) [@Bluenosser](https://forum.navigraph.com/u/Bluenosser)\ **Post date:** [June 1, 2021, 1:03am UTC](https://forum.navigraph.com/t/nsis-error/5209/1 "2021-06-01T01:03:59Z")
Hi I am receiving and NSIS error window whenever I try to install any executables from your website. This includes the data manager and the MSFS beta installers. I have tried a variety of things including scanning my HD for viruses and performing a chkdsk. I also tried to run the installers in a CMD window with the /NCRC extension… no matter what I try the NSIS error window appears. Any Ideas? Appreciate any response. Thanks ---
**Author:** ![stephen](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/stephen/32/10435_2.png) [@stephen](https://forum.navigraph.com/u/stephen)\ **Post date:** [June 1, 2021, 6:05am UTC](https://forum.navigraph.com/t/nsis-error/5209/2 "2021-06-01T06:05:51Z")
Can you post a screenshot of the error message please? Regards, Stephen ---
**Author:** ![Bluenosser](https://avatars.discourse-cdn.com/v4/letter/b/59ef9b/32.png) [@Bluenosser](https://forum.navigraph.com/u/Bluenosser)\ **Post date:** [June 1, 2021, 5:23pm UTC](https://forum.navigraph.com/t/nsis-error/5209/3 "2021-06-01T17:23:50Z")
Hi Stephen Please See Attached. Note: I was able to get it working by downloading the executables via another computer running an older version of win 10. I copied them over and they installed fine. It appears to me to be related to a windows security patch but I have not been able to find a work around. Anyway, up and working. Thx for getting back to me, if you find a fix, please let me know and I will try it and provide feedback. When I have a chancer I will do the same. Cheers John ![NSIS ERROR.png](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/2X/4/4dad2cd9b4b94d807e6ca6d5ba4ac2f37527839a.png) ---
**Author:** ![stephen](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/stephen/32/10435_2.png) [@stephen](https://forum.navigraph.com/u/stephen)\ **Post date:** [June 1, 2021, 6:54pm UTC](https://forum.navigraph.com/t/nsis-error/5209/4 "2021-06-01T18:54:09Z")
Hi, What Windows version are you running? I have not seen this issue before, so it must be something interfering in your firewall or antivirus that makes the installers corrupt. Regards, Stephen ---
**Author:** ![Bluenosser](https://avatars.discourse-cdn.com/v4/letter/b/59ef9b/32.png) [@Bluenosser](https://forum.navigraph.com/u/Bluenosser)\ **Post date:** [June 2, 2021, 5:17pm UTC](https://forum.navigraph.com/t/nsis-error/5209/5 "2021-06-02T17:17:40Z")
Ok I found the culprit. I use system mechanic version 21.3.0.12. By disabling the “Privacy Guardian Filtering” option, the executables from Navigraph no longer provide a NSIS error and install as expected. I had everything else off except for that one option, took a while to find 🙂 Cheers Windows version below. Edition Windows 10 Home Version 21H1 Installed on ‎3/‎14/‎2021 OS build 19043.1023 Experience Windows Feature Experience Pack 120.2212.2020.0 ---
**Author:** ![stephen](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/stephen/32/10435_2.png) [@stephen](https://forum.navigraph.com/u/stephen)\ **Post date:** [June 2, 2021, 6:44pm UTC](https://forum.navigraph.com/t/nsis-error/5209/6 "2021-06-02T18:44:48Z")
Glad to hear you found the problem! Regards, Stephen ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/1X/4cc83e90d70ab312b1bd2d7527bddad309607265.png) [@system](https://forum.navigraph.com/u/system)\ **Post date:** [June 4, 2021, 6:45pm UTC](https://forum.navigraph.com/t/nsis-error/5209/7 "2021-06-04T18:45:38Z")
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