Hi, we have many computers with this configuration (Office 2003 and Win 10 Pro 64 bit) and they all work fine but I have one laptop with this issue.

Start Excel (or Word, both act the same). Click on the 'Open File' shortcut and it takes over 10-15 seconds to pop up. This is before I even attempt to look for a file to open. He has no mapped network drives. His local administrator account is not affected but when he logs on with his domain account it is very slow

Could someone help please?