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-rw-r--r--src/Format/Tcformat.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/Format/Tcformat.c b/src/Format/Tcformat.c
index e98a25da..368c7d9e 100644
--- a/src/Format/Tcformat.c
+++ b/src/Format/Tcformat.c
@@ -3462,6 +3462,13 @@ BOOL QueryFreeSpace (HWND hwndDlg, HWND hwndTextBox, BOOL display, LONGLONG *pFr
else
{
LARGE_INTEGER lDiskFree;
+ // if the file pointed by szFileName already exists, we must add its size to the free space since it will be overwritten durig the volume creation
+ __int64 lFileSize = GetFileSize64(szFileName);
+ if (lFileSize != -1)
+ {
+ free.QuadPart += lFileSize;
+ }
+
lDiskFree.QuadPart = free.QuadPart;
if (pFreeSpaceValue)