Windows install failure

Hi.
I previously had one of the (much) earlier versions of the client installed. Upon trying to install the latest, it required me to remove the old version of the 'Dokan' package, which I did (and then restarted as requested.)

Now when trying to install, it gets me to a prompt looking for the 'keybase.msi' file. I cancel this dialogue (don't have that file to point it to?) and get a error log as below.

Help please?

Log:

[1878:1FC8][2017-07-18T13:08:18]i001: Burn v3.10.2.2516, Windows v10.0 (Build 15063: Service Pack 0), path: C:\Users\myusername\AppData\Local\Temp\{B334F18F-AEC6-407B-8F5F-EC8B29EF88F2}\.cr\keybase_setup_386.exe
[1878:1FC8][2017-07-18T13:08:18]i000: Initializing string variable 'DokanInstallFolder' to value '[ProgramFiles6432Folder]Dokan\Dokan Library-1.0.0'
[1878:1FC8][2017-07-18T13:08:18]i009: Command Line: '-burn.clean.room=C:\Downloads\Unsorted\keybase_setup_386.exe'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'WixBundleOriginalSource' to value 'C:\Downloads\Unsorted\keybase_setup_386.exe'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'WixBundleOriginalSourceFolder' to value 'C:\Downloads\Unsorted\'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'LOGPATH_PROP' to value 'C:\Users\myusername\AppData\Local\Temp\Keybase_20170718130818.log'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'WixBundleName' to value 'Keybase'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'WixBundleManufacturer' to value 'Keybase, Inc.'
[1878:27D8][2017-07-18T13:08:18]i000: Setting numeric variable 'WixStdBALanguageId' to value 1033
[1878:27D8][2017-07-18T13:08:18]i000: Setting version variable 'WixBundleFileVersion' to value '1.0.25.897'
[1878:1FC8][2017-07-18T13:08:18]i100: Detect begin, 13 packages
[1878:1FC8][2017-07-18T13:08:18]i000: Registry key not found. Key = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{65A3A986-3DC3-0100-0001-161027133015}'
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'NOT DokanUninstallString' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'DokanUninstallString' to value 'MsiExec.exe /X{65A3A964-3DC3-0100-0001-161027133015}'
[1878:1FC8][2017-07-18T13:08:18]i000: Registry key not found. Key = 'Software\Microsoft\Windows\CurrentVersion\Uninstall\{70E747DE-4E09-44B0-ACAD-784AA9D79C02}_is1'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting numeric variable 'InnoCLIInstalled' to value 0
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'NOT InnoCLIInstalled' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i000: Registry key not found. Key = 'Software\Microsoft\Windows\CurrentVersion\Uninstall\{70E747DE-4E09-44B0-ACAD-784AA9D79C02}_is1'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting numeric variable 'InnoCLIInstalled' to value 0
[1878:1FC8][2017-07-18T13:08:18]i000: Registry key not found. Key = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{357F272E-BE0E-409F-8E39-0BB9827F5716}_is1'
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'NOT InnoKBFSUninstallString' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i000: Registry key not found. Key = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{357F272E-BE0E-409F-8E39-0BB9827F5716}_is1'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'NETFRAMEWORK40' to value '1'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting version variable 'ADVAPIVERSION' to value '10.0.15063.0'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting version variable 'UCRTVERSION' to value '10.0.15063.447'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting version variable 'UCRTVERSION64' to value '10.0.15063.447'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'vcredist_2015_x64_installed' to value '1'
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'NOT vcredist_2015_x64_installed' evaluates to false.
[1878:1FC8][2017-07-18T13:08:18]i000: Setting numeric variable 'vcredist_2015_x64_version' to value 1
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'vcredist_2015_x64_versionnumber' to value '14.0.24215'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'vcredist_2015_x86_installed' to value '1'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting numeric variable 'vcredist_2015_x86_version' to value 1
[1878:1FC8][2017-07-18T13:08:18]i000: Setting string variable 'vcredist_2015_x86_versionnumber' to value '14.0.24215'
[1878:1FC8][2017-07-18T13:08:18]i000: Setting version variable 'WINTRUSTVERSION' to value '10.0.15063.0'
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'NETFRAMEWORK40' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'DokanUninstallString OR nodriver' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'vcredist_2015_x86_installed AND vcredist_2015_x86_version AND vcredist_2015_x86_versionnumber >= v14.0.23918' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'vcredist_2015_x64_installed AND vcredist_2015_x64_version AND vcredist_2015_x64_versionnumber >= v14.0.23918' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'UCRTVERSION >= v6.2.10585.0' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'UCRTVERSION64 >= v6.2.10585.0' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'UCRTVERSION >= v6.2.10585.0' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'UCRTVERSION64 >= v6.2.10585.0' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'UCRTVERSION >= v6.2.10585.0' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'UCRTVERSION64 >= v6.2.10585.0' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: NetFx40Web, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: dokanclean.exe, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: vcredist_2015_x86.exe, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: vcredist_2015_x64.exe, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Win71_KB2999226_x86, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Win71_KB2999226_x64, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Win80_KB2999226_x86, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Win80_KB2999226_x64, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Win81_KB2999226_x86, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Win81_KB2999226_x64, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Dokan_x86.msi, state: Absent, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: Dokan_x64.msi, state: Present, cached: None
[1878:1FC8][2017-07-18T13:08:18]i101: Detected package: KeybasePrograms, state: Absent, cached: Complete
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'Installed OR VersionNT > v6.1 OR (VersionNT = v6.1 AND ServicePackLevel >= 1)' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'Installed OR VersionNT > v6.1 OR (VersionNT = v6.1 AND ((WINTRUSTVERSION >= v6.1.7601.18741 AND WINTRUSTVERSION < v6.1.7601.22000) OR WINTRUSTVERSION >= v6.1.7601.22948))' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i052: Condition 'NOT InnoCLIInstalled AND NOT InnoKBFSUninstallString' evaluates to true.
[1878:1FC8][2017-07-18T13:08:18]i199: Detect complete, result: 0x0
[1878:1FC8][2017-07-18T13:08:20]i200: Plan begin, 13 packages, action: Install
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: NetFx40Web
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: dokanclean.exe
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: vcredist_2015_x86.exe
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'VersionNT64' evaluates to true.
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: vcredist_2015_x64.exe
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'NOT VersionNT64 AND VersionNT = v6.1' evaluates to false.
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: Win71_KB2999226_x86
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'VersionNT64 AND VersionNT = v6.1' evaluates to false.
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: Win71_KB2999226_x64
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'NOT VersionNT64 AND VersionNT = v6.2' evaluates to false.
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: Win80_KB2999226_x86
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'VersionNT64 AND VersionNT = v6.2' evaluates to false.
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: Win80_KB2999226_x64
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'NOT VersionNT64 AND VersionNT >= v6.3 AND ADVAPIVERSION < v6.3.10000.0' evaluates to false.
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: Win81_KB2999226_x86
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'VersionNT64 AND VersionNT >= v6.3 AND ADVAPIVERSION < v6.3.10000.0' evaluates to false.
[1878:1FC8][2017-07-18T13:08:20]w321: Skipping dependency registration on package with no dependency providers: Win81_KB2999226_x64
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'NOT VersionNT64 AND NOT nodriver' evaluates to false.
[1878:1FC8][2017-07-18T13:08:20]w322: Skipping cross-scope dependency registration on package: Dokan_x86.msi, bundle scope: PerUser, package scope: PerMachine
[1878:1FC8][2017-07-18T13:08:20]i052: Condition 'VersionNT64 AND NOT nodriver' evaluates to true.
[1878:1FC8][2017-07-18T13:08:20]w322: Skipping cross-scope dependency registration on package: Dokan_x64.msi, bundle scope: PerUser, package scope: PerMachine
[1878:1FC8][2017-07-18T13:08:20]i000: Setting string variable 'WixBundleRollbackLog_KeybasePrograms' to value 'C:\Users\myusername\AppData\Local\Temp\Keybase_20170718130818_000_KeybasePrograms_rollback.log'
[1878:1FC8][2017-07-18T13:08:20]i000: Setting string variable 'WixBundleLog_KeybasePrograms' to value 'C:\Users\myusername\AppData\Local\Temp\Keybase_20170718130818_000_KeybasePrograms.log'
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: NetFx40Web, state: Present, default requested: Present, ba requested: Present, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: dokanclean.exe, state: Present, default requested: Present, ba requested: Present, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: vcredist_2015_x86.exe, state: Present, default requested: Present, ba requested: Present, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: vcredist_2015_x64.exe, state: Present, default requested: Present, ba requested: Present, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Win71_KB2999226_x86, state: Present, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Win71_KB2999226_x64, state: Present, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Win80_KB2999226_x86, state: Present, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Win80_KB2999226_x64, state: Present, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Win81_KB2999226_x86, state: Present, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Win81_KB2999226_x64, state: Present, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Dokan_x86.msi, state: Absent, default requested: Absent, ba requested: Absent, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: Dokan_x64.msi, state: Present, default requested: Present, ba requested: Present, execute: None, rollback: None, cache: No, uncache: No, dependency: None
[1878:1FC8][2017-07-18T13:08:20]i201: Planned package: KeybasePrograms, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: Uninstall, cache: No, uncache: No, dependency: Register
[1878:1FC8][2017-07-18T13:08:20]i299: Plan complete, result: 0x0
[1878:1FC8][2017-07-18T13:08:20]i300: Apply begin
[1878:1FC8][2017-07-18T13:08:20]i370: Session begin, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{44ea62c3-a544-4bc2-a69b-c53535197ca8}, options: 0x7, disable resume: No
[1878:1FC8][2017-07-18T13:08:20]i000: Caching bundle from: 'C:\Users\myusername\AppData\Local\Temp\{8357E6C3-9B6C-4EC9-B171-1465ADA241BA}\.be\Keybase_1.0.25-20170714172604+acae5b0.386.exe' to: 'C:\Users\myusername\AppData\Local\Package Cache\{44ea62c3-a544-4bc2-a69b-c53535197ca8}\Keybase_1.0.25-20170714172604+acae5b0.386.exe'
[1878:1FC8][2017-07-18T13:08:20]i320: Registering bundle dependency provider: {44ea62c3-a544-4bc2-a69b-c53535197ca8}, version: 1.0.25.897
[1878:1FC8][2017-07-18T13:08:20]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{44ea62c3-a544-4bc2-a69b-c53535197ca8}, resume: Active, restart initiated: No, disable resume: No
[1878:2DA8][2017-07-18T13:08:20]i304: Verified existing payload: KeybasePrograms at path: C:\Users\myusername\AppData\Local\Package Cache\{DE9C8277-286C-4791-A530-6846B288479F}v1.0.25.897\Keybase.msi.
[1878:1FC8][2017-07-18T13:08:20]i323: Registering package dependency provider: {DE9C8277-286C-4791-A530-6846B288479F}, version: 1.0.25.897, package: KeybasePrograms
[1878:1FC8][2017-07-18T13:08:20]i301: Applying execute package: KeybasePrograms, action: Install, path: C:\Users\myusername\AppData\Local\Package Cache\{DE9C8277-286C-4791-A530-6846B288479F}v1.0.25.897\Keybase.msi, arguments: ' ARPSYSTEMCOMPONENT="1" MSIFASTINSTALL="7" DOKANPRODUCT86="{65A3A986-3DC3-0100-0001-161027133015}" DOKANPRODUCT64="{65A3A964-3DC3-0100-0001-161027133015}"'
[1878:1FC8][2017-07-18T13:08:45]e000: Error 0x80070643: Failed to install MSI package.
[1878:1FC8][2017-07-18T13:08:45]e000: Error 0x80070643: Failed to configure per-user MSI package.
[1878:1FC8][2017-07-18T13:08:45]i319: Applied execute package: KeybasePrograms, result: 0x80070643, restart: None
[1878:1FC8][2017-07-18T13:08:45]e000: Error 0x80070643: Failed to execute MSI package.
[1878:1FC8][2017-07-18T13:08:45]i318: Skipped rollback of package: KeybasePrograms, action: Uninstall, already: Absent
[1878:1FC8][2017-07-18T13:08:45]i319: Applied rollback package: KeybasePrograms, result: 0x0, restart: None
[1878:1FC8][2017-07-18T13:08:45]i329: Removed package dependency provider: {DE9C8277-286C-4791-A530-6846B288479F}, package: KeybasePrograms
[1878:1FC8][2017-07-18T13:08:45]i372: Session end, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{44ea62c3-a544-4bc2-a69b-c53535197ca8}, resume: None, restart: None, disable resume: No
[1878:1FC8][2017-07-18T13:08:45]i330: Removed bundle dependency provider: {44ea62c3-a544-4bc2-a69b-c53535197ca8}
[1878:1FC8][2017-07-18T13:08:45]i352: Removing cached bundle: {44ea62c3-a544-4bc2-a69b-c53535197ca8}, from path: C:\Users\myusername\AppData\Local\Package Cache\{44ea62c3-a544-4bc2-a69b-c53535197ca8}\
[1878:1FC8][2017-07-18T13:08:45]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{44ea62c3-a544-4bc2-a69b-c53535197ca8}, resume: None, restart initiated: No, disable resume: No
[1878:1FC8][2017-07-18T13:08:45]i399: Apply complete, result: 0x80070643, restart: None, ba requested restart:  No

Start with the reported Windows installer log and the prompt for keybase.msi; inspect the Dokan_x86.msi and Dokan_x64.msi package handling shown there. Reproduce an upgrade from the older Dokan installation, then confirm the latest client installs without requesting an unavailable keybase.msi.