<p>You need to delete your data directory.</p>

<p>See the question <a href="https://bitcoin.stackexchange.com/questions/4006/where-is-the-data-folder-for-bitcoin-qt">Where is the data folder for Bitcoin-Qt?</a> for where it should be installed by default on your system.</p>

<p>Make sure you backup <code>wallet.dat</code> first, if you've ever used any of the addresses in your wallet.</p>

CC BY-SA 3.0
2017-12-19T04:19:40.950Z
2017-12-19T04:19:40.950Z
Adam Millerchip
<p>I downloaded bitcoin core, and it "synced" the blockchain, taking up 163gig on my HD considerably slowing my comp. so I uninstalled bitcoin core, but yet still see to have 163gig of unwanted data slowing my computer. I operate Windows 10. HOW do I get rid of it. It seems to be in my users file, but mysteriously doesn't show up when trying to locate it? </p>

<bitcoin-core><datadir>
How do I delete the blockchain after uninstalling Bitcion Core?
Darryl
# How do I delete the blockchain after uninstalling Bitcion Core?

(Asked by: username_0 on 2017-12-19)

I downloaded bitcoin core, and it "synced" the blockchain, taking up 163gig on my HD considerably slowing my comp. so I uninstalled bitcoin core, but yet still see to have 163gig of unwanted data slowing my computer. I operate Windows 10. HOW do I get rid of it. It seems to be in my users file, but mysteriously doesn't show up when trying to locate it?

**Tags:** bitcoin-core, datadir


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## 1 answers

### Answer by username_1 on 2017-12-19. Score: 3

You need to delete your data directory.

See the question [Where is the data folder for Bitcoin-Qt?](https://bitcoin.stackexchange.com/questions/4006/where-is-the-data-folder-for-bitcoin-qt) for where it should be installed by default on your system.

Make sure you backup `wallet.dat` first, if you've ever used any of the addresses in your wallet.


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