Removing glue and tape from uPVC window frames

[Invisible Man]

A previous occupant stuck some large white plastic hooks to the uPVC window frames with what looks like a load of double sided tape and some old yellow brown adhesive. Possibly evostick or similar. It is very old and hard.

Any ideas on how to remove it?

I have cellulose thinners in the garage but suspect they would damage the uPVC. (I think my angle grinder would do the same!)

TIA for any advice.

[Simon C.]

WD40 gets the glue off, soapy water gets the WD40 off :)

[Phil B]

A sharp chisel did the job when I had a similar problem, but that WD40 sounds better! Phil

[Invisible Man]

Thanks for these 2. Will try out the WD40 when I throw off this food poisoning or virus or whatever.