Wrong network and bad block!

[droark]

File: D:\EMěna\Bitcoin\bloky\blocks/blk00000.dat is less than 88 bytes!

Pretty obvious that your blockchain data is corrupt. Wipe your blocks folder, start BitcoinQt and let it do its thing. I suggest your update to 0.12 if you haven't yet.

At the very least, please run 0.11.2 if you aren't yet. Pre-0.11.2 versions have major issues on Windows that cause constant blockchain corruption. 0.11.2 and beyond should be fine.