Window cleaning advice needed

[ct75]

Hi-I have recently moved into a property which I have been renovating for a long time, the exterior windows have loads of tiny specs on from rendering etc and I cannot get them clean using normal window cleaner.
Does anyone know of a product or method I can use which will help as they are that dirty I feel embarrassed when anyone comes to the house.

[The Builder]

They usually come off ok with a plastic scraper - the kind that holds a Stanley knife blade - but be careful - if you have been re glazed - new glass is still quite soft and scratches very easily

[heathfield]

Try getting the point of a Stanley blade under the edge of each blob, then lifting. Hopefully, it'll flick off.

If you have to scrape what's left, keep the glass wet with plenty of soapy water, and it'll help prevent scratching.

[tamborine]

Dab area with oil and push off with credit card edge.

[ct75]

These are thousands of tiny specs and not large blobs, I cannot do each 1 individually as it would take years.
What do you mean use oil?
What type?

[fluffy apple]

Hi try using wire wool with white spirit. Use I think its grade 000 or 01. use a big bundle with gloves on

hope it works

[ness.hirons]

A scraper meant for cleaning a ceramic hob may do it as these are designed not to scratch.