That's what I did -
1. downloaded a new version of the wallet from the site http://www.piecoin.info
2. I went to the folder at C: \ %Users% \ %user% \ AppData \ Roaming \ PieCoin
3. made a copy of the PieCoin folder.
4. deleted all files in this folder except piecoin.conf and wallet
5. launched the wallet, below appeared a green bar and synchronization started
6.if there is a green strip, but synchronization does not go, then it is necessary to do-
Unfortunately the Windows wallet some times has problems finding connections. The solution is very simple.
Just open the Help Menu, then click on the Debug Window and go to Console Tab. There Copy and Paste the following lines, one by one and click enter after each entry.
addnode 82.165.162.27 onetry
addnode 82.165.162.27 add
addnode 81.89.100.38 onetry
addnode 81.89.100.38 add
addnode 62.138.3.214 onetry
addnode 62.138.3.214 add
addnode 107.170.196.135 onetry
addnode 107.170.196.135 add
7. After this, 5 active connections to the network appeared and the synchronization started
8. I have synchronization lasted 5 hours
9. All coins remained on the balance sheet.
Good luck.