This is how you fix the Citrix failed during request error, which can prevent the installation of a new Citrix client or associating the ICA file type to the current client.
What the Application event log says:
‘WEB_CLIENT’ failed during request for component ‘{1762F5BA-3F32-4A41-90CB-83C447BE6ED2}’
Solution
* either package or run these commands as admin
ftype Citrix.ICAClient.2.7.NEW=”C:\Program Files (x86)\Citrix\ICA Client\wfcrun32.exe” “%1”
assoc .ica=Citrix.ICAClient.2.7.NEW