You said it just a few posts ago. Not sure why you quoted yourself and didn't actually type anything.

...BUT...

1. Go to post #1 and use the link there to download the latest wallet. (check post #1 in any [ANN] for updated information before asking basic questions).
2. Go to the folder where your wallet.dat is and make a backup.
3. Go to where your syscoin.conf is and back that up (you might want it back in a minute).
4. Remove your current Wallet SOFTWARE.
5. Delete the entire contents of the location where your wallet.dat BUT NOT THE wallet.dat file - KEEP THE WALLET.DAT but nuke the other files.
6. Create syscoin.conf as a plain text file in the same location as your wallet.dat - then copy and paste the paragraph below this line ::

rpcallowip=127.0.0.1
rpcport=19667
port=19666
server=1
gen=0
daemon=1
listen=1
rpcserver=1
addnode=faucet.no-ip.biz
addnode=sys.bemining.net
addnode=node.syscoin.me
addnode=212.17.40.234
addnode=66.248.204.251
addnode=54.198.232.29
addnode=71.85.227.255
addnode=178.62.10.46
addnode=31.220.4.41
addnode=54.186.125.97
addnode=54.186.248.126
addnode=95.211.57.109
addnode=192.99.10.27
addnode=37.187.71.108

7. Install the new wallet SOFWARE and run it.

If your wallet isn't restarting, do the above steps again, but skip 1, 4, 6, and 7.

For now, every time you close the wallet and then go to open it again, the GUI will fail to load. HOWEVER ... there will still be a running process that you must kill from your systray or task manager BEFORE you nuke the appdata folder and THEN you can run the wallet app again.