# Stuck at 98% Sync (Zecwallet Fullnode - Windows 10)

**URL:** <https://forum.zcashcommunity.com/t/stuck-at-98-sync-zecwallet-fullnode-windows-10/38210>\
**Category:** Technical Support\
**Created:** [January 10, 2021, 7:36am UTC](https://forum.zcashcommunity.com/t/stuck-at-98-sync-zecwallet-fullnode-windows-10/38210 "2021-01-10T07:36:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![xenzo](https://avatars.discourse-cdn.com/v4/letter/x/54ee81/32.png) [@xenzo](https://forum.zcashcommunity.com/u/xenzo)\
**Post date:** [January 10, 2021, 7:36am UTC](https://forum.zcashcommunity.com/t/stuck-at-98-sync-zecwallet-fullnode-windows-10/38210/1 "2021-01-10T07:36:52Z")

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I hadn’t used my fullnode in a while and booted it up today. I was at 90% synced then at 98% received an errorlog stating to update to 4.2 - wish i saved that log. This is what happens in my zcashd immediatly before it crashes when i run it.

 ![image](https://global.discourse-cdn.com/zcash/original/3X/0/e/0e2fac2c867d6681a62e434020901d2582f95b5b.png)

I’ve tried everything I could think of before posting this. Unfortunately, nothing has worked.

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**Author:** ![ChileBob](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/chilebob/32/26546_2.png) [@ChileBob](https://forum.zcashcommunity.com/u/ChileBob)\
**Post date:** [January 10, 2021, 3:11pm UTC](https://forum.zcashcommunity.com/t/stuck-at-98-sync-zecwallet-fullnode-windows-10/38210/2 "2021-01-10T15:11:47Z")

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I see an ‘Assertion failed’ message on your screenshot, so you probably have to restart with ‘-reindex’ to fix that (it takes ages).

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**Author:** ![LarryRuane](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/larryruane/32/11923_2.png) [@LarryRuane](https://forum.zcashcommunity.com/u/LarryRuane)\
**Post date:** [January 12, 2021, 4:05pm UTC](https://forum.zcashcommunity.com/t/stuck-at-98-sync-zecwallet-fullnode-windows-10/38210/3 "2021-01-12T16:05:38Z")

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@xenzo, this problem has been fixed by [PR 4690](https://github.com/zcash/zcash/pull/4690), which is part of v4.2.0, but unfortunately, the assertion failure can happen while upgrading to v4.2.0. You will need to restart with `-reindex` as ChiliBob suggested, or with `-rescan` which is faster. (You have not lost funds or anything like that.)