Cannot Access File / Read Only Or Encrypted

I am running Windows XP, had to run a Windows repair. I am the owner / administrator of my pc. Since the repair, it seems I have lost ownership, permissions or attributes to my files. I will try to explain as best as I can. if I create a document and save it to an existing folder most of the time I can still access that <ocument. I have the same issue if scan a document, then save to a folder...I can usually still access but I never know, sometimes I can't. BUT, if I create a new folder and copy or move a document into the new folder I no longer have access to that file. Once the document has been moved into a folder I will get an error message saying Cannot access (filename). The document may be read-only or encrypted. I click on ok and a second message appears saying (filename) cannot be accessed. The file may be corrupted, located on a server that is not responding, or read-only. I cannot figure out whats triggering it. Ive checked folder properties >sharing> some(but not all)of the folders have the make this folder private checked and I cannot change it. These seem to be the folders that are denying me access to my documents.