G'afternoon codswallop..... I am anxious that you should have a good Broadband connection and, whilst yours is very slow at present, it has nothing whatsoever to do with Internet Speed Testers. You are unable to find any file/folder for a Speed Tester, which you think you have downloaded, because you have to go 0n-line to do any testing. The most you are likely to find in your PC/Laptop would be a shortcut to the testing site concerned; and that would have involved your having set-up such a shortcut.
Please tell me from whom you receive your Broadband. If it is BT then you are talking to someone who has been having problems with the firm since March of this year. I am still receiving telephone calls from Indian Call Centres which are going to be closed down by BT and brought back to the UK.
Having said what I have, it is disappointing to me that other regular posters in AB's Technology section have remained silent on the issue. If I am 'barking up the wrong tree', I would welcome a Techie telling me so.
Hans.