My systems always seem to have excess service pack and hotfix uninstall folders, and registry entries, mostly from my participation in the betas.
Prior to installing a new service pack release, I use DelHotFix.bat to delete all previous service pack and hotfix uninstall folders, and the Control Panel / Add or Remove Programs registry entries.
NOTE: I am NOT recommending that you do this, but you could run the DelHotFix.bat in display mode.
The syntax for using DelHotFix.bat is:
DelHotFix \[/D\]
Where /D is an optional switch that causes the folder and registry key deletion.
DelHotFix.bat contains:
@echo off
setlocal
@echo DelHotFix \[/D\]
set sw=%1
set key=HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
set blank=
set fnd=findstr /L /I
for /f "Tokens=*" %%a in ('reg query %key% ^|%fnd% /C:"\Uninstall\KB"') do (
set UK=%%a
call :parse
)
for /f "Tokens=*" %%a in ('reg query %key% ^|%fnd% /C:"\Uninstall\Q0"') do (
set UK=%%a
call :parse
)
for /f "Tokens=*" %%a in ('reg query %key% ^|%fnd% /C:"\Uninstall\Q8"') do (
set UK=%%a
call :parse
)
set key="HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Windows 2000 Service Pack"
call :SP
set key="HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Windows XP Service Pack"
call :SP
set key="HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Windows Server 2003 Service Pack"
call :SP
if /i "%sw%" NEQ "/D" dir /b /a /ad "%SystemRoot%\$NT*"
if /i "%sw%" NEQ "/D" goto finish
for /f "Tokens=*" %%d in ('dir /b /a /ad "%SystemRoot%\$NT*"') do (
@echo Deleting "%SystemRoot%\%%d"
rd /s /q "%SystemRoot%\%%d"
)
:finish
endlocal
goto :EOF
:parse
set UK=HKLM%UK:~18%
for /f "Tokens=2*" %%b in ('reg Query "%UK%" /v DisplayName') do (
set name=%%c
)
if /i "%sw%" NEQ "/D" @echo %UK% %blank% %blank% %name%
if /i "%sw%" NEQ "/D" goto :EOF
@echo REG DELETE %UK% /F
REG DELETE %UK% /F
@echogoto :EOF
:SP
set OK=N
call :SPX>nul 2>&1
if "%OK%" EQU "N" goto :EOF
if /i "%sw%" NEQ "/D" @echo %key%&goto :EOF
set UK=%key%
@echo REG DELETE %UK% /F
REG DELETE %UK% /F
@echogoto :EOF
:SPX
for /f "Tokens=*" %%a in ('reg query %key%') do (
set OK=Y
)
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