Using 64-Bit version of QuickHash, performing an SHA256 hash of 7.36GB ISO to compare against known hash. QuickHash reads 600MB to 700MB of file and then appears to hang, QuickHash does not update progress bar, spinning circle appears and if QuickHash is clicked the QuickHash title bar says \”Not responding\”.

If QuickHash is left to run the hash process does complete.

OS is Windows 8.1 Enterprise x64, PC has 8GB RAM, i5-6300 CPU