GoB

What I finally did was change the local environment variables for user for Temp and Tmp as follows: Temp = C:\Temp Tmp = C:\Tmp I know this works because I tried both of the test programs you provided and got no errors. I haven't tried the trial yet because I don't have the time right now. Will definitely try later. These environment variables used to be set as follows: Temp = %HOMEDRIVE%\Temp Tmp = %HOMEDRIVE%\Tmp Where HOMEDRIVE has the value C: All this looks right when in the environment variable settings but does not appear to work when programs try to use these variables. The values appear as %HOMED~1/Temp and %HOMED~1/Tmp which I just don't understand. I hope this explanation makes sense. Thanks for your time, George

Yes, you are absolutely correct. I traced to to this environment variable which I can';t understand why it would not be set, it is SystemRoot. The %SystemRoot% variable is a special system-wide environment variable found on Windows NT and its derivatives. Its value is the location of the system directory, including the drive and path. The OS sets this, probably at boot time. I will have to try and figure out why that has happened Thank you for all your help. You have narrowed to problem down to were I think I can find a solution. Thanks again. George

Test2 output follows: GetTempPath... Returned: 52 Path: F:\SaveThis\AffinityPhoto\affinitytest\%HOMED~1\Tmp\ CreateDirectory "F:\SaveThis\AffinityPhoto\affinitytest\%HOMED~1\Tmp\AffinitySetup\"... Returned: 0 Error code: 3 UuidCreateSequential... Returned: 0 UuidToString... Returned: 0 String: 160b454b-81e3-11e7-8bfb-4ccc6a0876fb CreateDirectory "F:\SaveThis\AffinityPhoto\affinitytest\%HOMED~1\Tmp\AffinitySetup\160b454b-81e3-11e7-8bfb-4ccc6a0876fb\"... Returned: 0 Error code: 3 George

It will be later this year when Microsoft releases this or a similar version. I think I heard October, but I can't recall exactly.. If you don't want to pursue this further, I understand. It can be time consuming. George

Ran the test program and almost instantaneously received the same error message as No way to copy anything to clipboard or I have misunderstood your instructions. I am now at Windows version 10 pro insider preview build 16257.

OK, that's fine. I tried turning off "Windows Defender Security" and the "Windows Firewall", didn't help. Is anyone else having this issue with Windows Preview or is it just me? George PS: Got an email telling me the trial version has expired.

Did everything as you requested. The run of "C:/Affinity+Photo+Windows+Trial.exe /log" yielded the same error message as above. Then ran "%temp%/AffinitySetup/". There is no directory "AffinitySetup" within the Temp directory" %temp% is set to C:\Temp George

Same, no change. Same error message. George

Just tried run as Admin. Same exact error message. Same results, does not install. George

Trying to install trial fails. Get this error message: Exception Create Directory failed. At that point the install fails and ends. Running Windows 10 Pro Insider Preview X64 build 16241 Any help would be appreciated. George