diff --git a/vlib/os/os_windows.c.v b/vlib/os/os_windows.c.v
index 0850a5857e..1f0adf07d4 100644
--- a/vlib/os/os_windows.c.v
+++ b/vlib/os/os_windows.c.v
@@ -281,7 +281,7 @@ pub fn exec(cmd string) ?Result {
 			break
 		}
 	}
-	soutput := read_data.str()
+	soutput := read_data.str().trim_space()
 	read_data.free()
 	exit_code := u32(0)
 	C.WaitForSingleObject(proc_info.h_process, C.INFINITE)
diff --git a/vlib/v/builder/msvc.v b/vlib/v/builder/msvc.v
index f69c606ebe..0f3d98ea76 100644
--- a/vlib/v/builder/msvc.v
+++ b/vlib/v/builder/msvc.v
@@ -138,19 +138,19 @@ fn find_vs(vswhere_dir, host_arch string) ?VsInstallation {
 	res := os.exec('"$vswhere_dir\\Microsoft Visual Studio\\Installer\\vswhere.exe" -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath') or {
 		return error(err)
 	}
-	path := res.output.trim_space().trim_right('\r\n')
+	res_output := res.output.trim_right('\r\n')
 	// println('res: "$res"')
-	version := os.read_file('$path\\VC\\Auxiliary\\Build\\Microsoft.VCToolsVersion.default.txt') or {
+	version := os.read_file('$res_output\\VC\\Auxiliary\\Build\\Microsoft.VCToolsVersion.default.txt') or {
 		// println('Unable to find msvc version')
 		return error('Unable to find vs installation')
 	}
 	version2 := version // TODO remove. cgen option bug if expr
 	// println('version: $version')
 	v := if version.ends_with('\n') { version2[..version.len - 2] } else { version2 }
-	lib_path := '$path\\VC\\Tools\\MSVC\\$v\\lib\\$host_arch'
-	include_path := '$path\\VC\\Tools\\MSVC\\$v\\include'
+	lib_path := '$res.output\\VC\\Tools\\MSVC\\$v\\lib\\$host_arch'
+	include_path := '$res.output\\VC\\Tools\\MSVC\\$v\\include'
 	if os.exists('$lib_path\\vcruntime.lib') {
-		p := '$path\\VC\\Tools\\MSVC\\$v\\bin\\Host$host_arch\\$host_arch'
+		p := '$res.output\\VC\\Tools\\MSVC\\$v\\bin\\Host$host_arch\\$host_arch'
 		// println('$lib_path $include_path')
 		return VsInstallation{
 			exe_path: p
@@ -303,14 +303,14 @@ pub fn (mut v Builder) cc_msvc() {
 	// println('$cmd')
 	ticks := time.ticks()
 	res := os.exec(cmd) or {
-		println(err.trim_space())
+		println(err)
 		verror('msvc error')
 		return
 	}
 	diff := time.ticks() - ticks
 	v.timing_message('C msvc', diff)
 	if res.exit_code != 0 {
-		verror(res.output.trim_space())
+		verror(res.output)
 	}
 	// println(res)
 	// println('C OUTPUT:')
@@ -343,15 +343,15 @@ fn (mut v Builder) build_thirdparty_obj_file_with_msvc(path string, moduleflags
 	// println('thirdparty cmd line: $cmd')
 	res := os.exec(cmd) or {
 		println('msvc: failed thirdparty object build cmd: $cmd')
-		verror(err.trim_space())
+		verror(err)
 		return
 	}
 	if res.exit_code != 0 {
 		println('msvc: failed thirdparty object build cmd: $cmd')
-		verror(res.output.trim_space())
+		verror(res.output)
 		return
 	}
-	println(res.output.trim_space())
+	println(res.output)
 }
 
 struct MsvcStringFlags {