The problem is simple, all russian character, in old and new documents, becoming question marks.
To day i open files that i created tommorow and all russian letters become question marks. Yesterday they work fine but now they are corruped.
I saved files in .docx format
When i am trying to open them in MS Office it tells that files are corruped and cant be open.
But the strange this is that the files that i created, something about 5 days before are working perfectly.