Dear all,
I try to install PsychoPy on a Windows 7 Pro computer. After installation, it was not possible to execute PsychoPy because of " api-ms-win-crt-runtime-l1-1-0.dll" missing. After finding some solutions on the forums, I tried to install “Visual C++ Redistributable for Visual Studio 2015” but get the following error messages 
[108C:0F08][2021-01-20T08:34:33]i001: Burn v3.7.3813.0, Windows v6.1 (Build 7600: Service Pack 0), path: C:\Users\Stagiaire\Downloads\vc_redist.x64(1).exe, cmdline: ‘’
[108C:0F08][2021-01-20T08:34:33]i000: Setting string variable ‘WixBundleLog’ to value ‘C:\Users\STAGIA~1\AppData\Local\Temp\dd_vcredist_amd64_20210120083433.log’
[108C:0F08][2021-01-20T08:34:33]i000: Setting string variable ‘WixBundleOriginalSource’ to value ‘C:\Users\Stagiaire\Downloads\vc_redist.x64(1).exe’
[108C:0F08][2021-01-20T08:34:33]i000: Setting string variable ‘WixBundleOriginalSourceFolder’ to value ‘C:\Users\Stagiaire\Downloads’
[108C:0F08][2021-01-20T08:34:34]i100: Detect begin, 10 packages
[108C:0F08][2021-01-20T08:34:34]i000: File search: windows_uCRT_DetectKey, did not find path: C:\Windows\system32\api-ms-win-crt-runtime-l1-1-0.dll
[108C:0F08][2021-01-20T08:34:34]i000: File search: windows_uCRT_DetectKeyExists, did not find path: C:\Windows\system32\api-ms-win-crt-runtime-l1-1-0.dll
[108C:0F08][2021-01-20T08:34:34]i000: Setting numeric variable ‘windows_uCRT_DetectKeyExists’ to value 0
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘(windows_uCRT_DetectKeyExists AND windows_uCRT_DetectKey >= v10.0.10137.0)’ evaluates to false.
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: vcRuntimeMinimum_x64, state: Present, cached: Complete
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: vcRuntimeAdditional_x64, state: Present, cached: Complete
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: Windows81_x86, state: Absent, cached: None
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: Windows81_x64, state: Absent, cached: None
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: Windows8_x86, state: Absent, cached: None
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: Windows8_x64, state: Absent, cached: None
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: Windows7_MSU_x86, state: Absent, cached: None
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: Windows7_MSU_x64, state: Absent, cached: Complete
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: WindowsVista_MSU_x86, state: Absent, cached: None
[108C:0F08][2021-01-20T08:34:34]i101: Detected package: WindowsVista_MSU_x64, state: Absent, cached: None
[108C:0F08][2021-01-20T08:34:34]i052: Condition ‘VersionNT64 >= v6.0 OR (VersionNT64 = v5.2 AND ServicePackLevel >= 1)’ evaluates to true.
[108C:0F08][2021-01-20T08:34:34]i199: Detect complete, result: 0x0
[108C:0F08][2021-01-20T08:34:36]i200: Plan begin, 10 packages, action: Repair
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘(VersionNT64)’ evaluates to true.
[108C:0F08][2021-01-20T08:34:36]i000: Setting string variable ‘WixBundleLog_vcRuntimeMinimum_x64’ to value ‘C:\Users\STAGIA~1\AppData\Local\Temp\dd_vcredist_amd64_20210120083433_000_vcRuntimeMinimum_x64.log’
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘(VersionNT64)’ evaluates to true.
[108C:0F08][2021-01-20T08:34:36]i000: Setting string variable ‘WixBundleLog_vcRuntimeAdditional_x64’ to value ‘C:\Users\STAGIA~1\AppData\Local\Temp\dd_vcredist_amd64_20210120083433_001_vcRuntimeAdditional_x64.log’
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.3 AND NOT VersionNT64’ evaluates to false.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: Windows81_x86
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.3 AND VersionNT64’ evaluates to false.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: Windows81_x64
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.2 AND NOT VersionNT64’ evaluates to false.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: Windows8_x86
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.2 AND VersionNT64’ evaluates to false.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: Windows8_x64
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.1 AND NOT VersionNT64’ evaluates to false.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: Windows7_MSU_x86
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.1 AND VersionNT64’ evaluates to true.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: Windows7_MSU_x64
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.0 AND NOT VersionNT64’ evaluates to false.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: WindowsVista_MSU_x86
[108C:0F08][2021-01-20T08:34:36]i052: Condition ‘VersionNT = v6.0 AND VersionNT64’ evaluates to false.
[108C:0F08][2021-01-20T08:34:36]w321: Skipping dependency registration on package with no dependency providers: WindowsVista_MSU_x64
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: vcRuntimeMinimum_x64, state: Present, default requested: Repair, ba requested: Repair, execute: Repair, rollback: None, cache: No, uncache: No, dependency: Register
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: vcRuntimeAdditional_x64, state: Present, default requested: Repair, ba requested: Repair, execute: Repair, rollback: None, cache: No, uncache: No, dependency: Register
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: Windows81_x86, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: Windows81_x64, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: Windows8_x86, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: Windows8_x64, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: Windows7_MSU_x86, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: Windows7_MSU_x64, state: Absent, default requested: Repair, ba requested: Repair, execute: Install, rollback: Uninstall, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: WindowsVista_MSU_x86, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i201: Planned package: WindowsVista_MSU_x64, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[108C:0F08][2021-01-20T08:34:36]i299: Plan complete, result: 0x0
[108C:0F08][2021-01-20T08:34:36]i300: Apply begin
[1248:1790][2021-01-20T08:40:46]w308: Automatic updates could not be paused due to error: 0x80080005. Continuing…
[1248:1790][2021-01-20T08:40:46]i360: Creating a system restore point.
[1248:1790][2021-01-20T08:41:15]i361: Created a system restore point.
[1248:1790][2021-01-20T08:41:15]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{e46eca4f-393b-40df-9f49-076faf788d83}, resume: Active, restart initiated: No, disable resume: No
[1248:1340][2021-01-20T08:41:15]i304: Verified existing payload: vcRuntimeMinimum_x64 at path: C:\ProgramData\Package Cache{0D3E9E15-DE7A-300B-96F1-B4AF12B96488}v14.0.23026\packages\vcRuntimeMinimum_amd64\vc_runtimeMinimum_x64.msi.
[1248:1340][2021-01-20T08:41:15]i304: Verified existing payload: cab5046A8AB272BF37297BB7928664C9503 at path: C:\ProgramData\Package Cache{0D3E9E15-DE7A-300B-96F1-B4AF12B96488}v14.0.23026\packages\vcRuntimeMinimum_amd64\cab1.cab.
[1248:1340][2021-01-20T08:41:15]i304: Verified existing payload: vcRuntimeAdditional_x64 at path: C:\ProgramData\Package Cache{BC958BD2-5DAC-3862-BB1A-C1BE0790438D}v14.0.23026\packages\vcRuntimeAdditional_amd64\vc_runtimeAdditional_x64.msi.
[1248:1340][2021-01-20T08:41:17]i304: Verified existing payload: cab2C04DDC374BD96EB5C8EB8208F2C7C92 at path: C:\ProgramData\Package Cache{BC958BD2-5DAC-3862-BB1A-C1BE0790438D}v14.0.23026\packages\vcRuntimeAdditional_amd64\cab1.cab.
[1248:1340][2021-01-20T08:41:17]i304: Verified existing payload: Windows7_MSU_x64 at path: C:\ProgramData\Package Cache\42D5BEC7DDFBD49E76467529CBC2868987BF8460\packages\Patch\x64\Windows6.1-KB2999226-x64.msu.
[1248:1790][2021-01-20T08:41:17]i301: Applying execute package: vcRuntimeMinimum_x64, action: Repair, path: C:\ProgramData\Package Cache{0D3E9E15-DE7A-300B-96F1-B4AF12B96488}v14.0.23026\packages\vcRuntimeMinimum_amd64\vc_runtimeMinimum_x64.msi, arguments: ’ MSIFASTINSTALL=“7” NOVSUI=“1”’
[108C:0F08][2021-01-20T08:41:38]i319: Applied execute package: vcRuntimeMinimum_x64, result: 0x0, restart: None
[1248:1790][2021-01-20T08:41:38]i325: Registering dependency: {e46eca4f-393b-40df-9f49-076faf788d83} on package provider: Microsoft.VS.VC_RuntimeMinimumVSU_amd64,v14, package: vcRuntimeMinimum_x64
[1248:1790][2021-01-20T08:41:38]i301: Applying execute package: vcRuntimeAdditional_x64, action: Repair, path: C:\ProgramData\Package Cache{BC958BD2-5DAC-3862-BB1A-C1BE0790438D}v14.0.23026\packages\vcRuntimeAdditional_amd64\vc_runtimeAdditional_x64.msi, arguments: ’ MSIFASTINSTALL=“7” NOVSUI=“1”’
[108C:0F08][2021-01-20T08:41:43]i319: Applied execute package: vcRuntimeAdditional_x64, result: 0x0, restart: None
[1248:1790][2021-01-20T08:41:43]i325: Registering dependency: {e46eca4f-393b-40df-9f49-076faf788d83} on package provider: Microsoft.VS.VC_RuntimeAdditionalVSU_amd64,v14, package: vcRuntimeAdditional_x64
[1248:1790][2021-01-20T08:41:43]i301: Applying execute package: Windows7_MSU_x64, action: Install, path: C:\ProgramData\Package Cache\42D5BEC7DDFBD49E76467529CBC2868987BF8460\packages\Patch\x64\Windows6.1-KB2999226-x64.msu, arguments: ‘“C:\Windows\SysNative\wusa.exe” “C:\ProgramData\Package Cache\42D5BEC7DDFBD49E76467529CBC2868987BF8460\packages\Patch\x64\Windows6.1-KB2999226-x64.msu” /quiet /norestart’
[1248:1790][2021-01-20T08:42:00]e000: Error 0x80240017: Failed to execute MSU package.
[108C:0F08][2021-01-20T08:42:00]e000: Error 0x80240017: Failed to configure per-machine MSU package.
[108C:0F08][2021-01-20T08:42:00]i319: Applied execute package: Windows7_MSU_x64, result: 0x80240017, restart: None
[108C:0F08][2021-01-20T08:42:00]e000: Error 0x80240017: Failed to execute MSU package.
[1248:1790][2021-01-20T08:42:00]i372: Session end, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{e46eca4f-393b-40df-9f49-076faf788d83}, resume: ARP, restart: None, disable resume: No
[1248:1790][2021-01-20T08:42:00]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{e46eca4f-393b-40df-9f49-076faf788d83}, resume: ARP, restart initiated: No, disable resume: No
[108C:0F08][2021-01-20T08:42:01]i399: Apply complete, result: 0x80240017, restart: None, ba requested restart: No
Any idea ?
Thank you very much in advance,
Best harold