# Windows 10: Failed to start server: Error: Error loading context store: SyntaxError: Unexpected token in JSON at position 0

**URL:** <https://discourse.nodered.org/t/windows-10-failed-to-start-server-error-error-loading-context-store-syntaxerror-unexpected-token-in-json-at-position-0/25337>\
**Category:** General\
**Created:** [23 April 2020 00:38 UTC](https://discourse.nodered.org/t/windows-10-failed-to-start-server-error-error-loading-context-store-syntaxerror-unexpected-token-in-json-at-position-0/25337 "2020-04-23T00:38:07Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Post date:** [23 April 2020 09:40 UTC](https://discourse.nodered.org/t/windows-10-failed-to-start-server-error-error-loading-context-store-syntaxerror-unexpected-token-in-json-at-position-0/25337/5 "2020-04-23T09:40:57Z")

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Sorry I didn't remember 🥴 I hit this edge case issue back in [October](https://discourse.nodered.org/t/node-red-crashing-at-startup-due-to-bad-flow-context-reproducible/17366) and opened an [issue](https://github.com/node-red/node-red/issues/2369) about it.

In my case it was caused by swapping projects, but as you have found out, if you delete the presistant data file for the occurance of NR, it will work but the persistent data will be gone.

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_[View the full topic](https://discourse.nodered.org/t/windows-10-failed-to-start-server-error-error-loading-context-store-syntaxerror-unexpected-token-in-json-at-position-0/25337)._